TWI735809B - Techniques for power control using carrier aggregation in wireless communications - Google Patents

Abstract

Methods, systems, and devices for wireless communications are described that provide for managing transmissions using multiple component carriers (CCs) in which transmissions using one or more of the CCs may span less than a full transmission time of a slot or other transmission time interval. A UE may signal a capability to transmit such transmissions, and one or more capabilities related to carrier aggregation that may be used by a base station for scheduling of transmissions on different CCs. In the event that overlapping transmissions on two or more CCs exceed a maximum power threshold, various techniques for dropping at least a portion of one or more transmissions of one or more CCs are described.

Description

Technology for power control using carrier aggregation in wireless communication

This patent application claims the priority of the following U.S. applications: U.S. Patent Application No. 15/974,372 filed by Wang et al. on May 8, 2018, entitled "TECHNIQUES FOR POWER CONTROL USING CARRIER AGGREGATION IN WIRELESS COMMUNICATIONS" No. 62/588,164 filed by Wang et al. on November 17, 2017, entitled "TECHNIQUES FOR POWER CONTROL USING CARRIER AGGREGATION IN WIRELESS COMMUNICATIONS"; and Wang et al. on November 17, 2017 U.S. Provisional Patent Application No. 62/588,205, filed on 17th, entitled "TECHNIQUES FOR POWER CONTROL USING CARRIER AGGREGATION IN WIRELESS COMMUNICATIONS", each of these applications has been assigned to the assignee of this case , So incorporated into this article by reference.

The following description is generally about wireless communication, and more specifically about the technology used for power control using carrier aggregation in wireless communication.

Wireless communication systems have been widely deployed to provide various types of communication content, such as voice, video, packet data, message delivery, broadcast, and so on. These systems can support communication with multiple users by sharing available system resources (for example, time, frequency, and power). Examples of such multiple access systems include fourth-generation (4G) systems (for example, long-term evolution (LTE) systems or improved LTE (LTE-A) systems) and fifth-generation (5G) systems (which can be called For the New Radio (NR) system). Such systems can adopt codes such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA) or Discrete Fourier Access (OFDMA). Liye transform extended OFDM (DFT-S-OFDM) and other technologies. The wireless multiple access communication system may include multiple base stations or network access nodes, and each base station or network access node supports the communication of multiple communication devices (or user equipment (UE)) at the same time .

Some wireless communication systems can support the communication between the UE and the base station on multiple aggregated component carriers (CC). This feature is called carrier aggregation. In some cases, the UE may transmit uplink signals on different carriers during transmission time intervals (TTI) with different durations. In addition, the UE can transmit uplink signals according to the maximum transmission power limit. However, in such cases, it may be difficult for the UE to recognize the appropriate uplink power for multiple CCs within the maximum transmit power limit. In addition, in some cases, in a wireless communication system, there may be UEs with different capabilities associated with transmission using multiple CCs, and therefore treating all UEs uniformly may not be able to fully utilize the capabilities of some UEs. Therefore, efficiently determining the uplink transmit power and considering UE capabilities in network management can improve the efficiency of the wireless communication system.

The described technology relates to an improved method, system, device, or device that supports a technology for power control using carrier aggregation in wireless communications. The various described techniques provide for management of transmissions using multiple component carriers (CCs), where transmissions using one or more of the CCs can span less than a complete transmission time interval (TTI) (e.g., transmission time slot, Sub-frame or other TTI). In some cases, according to some of the techniques described herein, the UE may signal one or more capabilities related to carrier aggregation, and the base station may use the one or more capabilities to schedule transmissions on different CCs. In some cases, the UE may signal a capability indication of the UE capability to the base station to support transmissions with different start times or durations on different CCs.

In some cases, the UE can support CC, where different CCs can belong to different timing advance groups (TAGs), so that the start time of TTI (for example, symbols, time slots, subframes, and combinations thereof) may not be synchronized by as much as A certain threshold. Such synchronization offsets may cause the transmit power at the UE to have an instantaneous value exceeding the maximum power threshold, and in some cases, the UE may provide the UE with an indication of the overlap threshold, which indicates the time when the UE transmit power may exceed the maximum power threshold quantity.

In some cases, the UE may also perform power control on multiple CCs to provide uplink transmit power that meets the maximum power threshold. The transmission of different CCs may have different start times, different stop times, different durations, or Its combination. In some cases, the UE may receive multiple uplink resource grants for multiple uplink transmissions on two or more CCs during a time slot, and determine that during at least a part of the time slot, use The transmit power for sending the uplink transmission exceeds the maximum power threshold for the UE. In response to the determination, the UE may discard at least a part of the first uplink transmission of the plurality of uplink transmissions, where the final transmit power is less than or equal to the maximum power threshold, and use one or more of the CCs The remaining uplink transmissions of the plurality of uplink transmissions are sent during the time slot. Additionally or alternatively, the UE may scale the transmit power of one or more CCs in the CC for at least a part of the time slot, so that the transmit power of the UE is less than or equal to the maximum power threshold. In some cases, the UE may perform look-ahead power scaling for uplink grants received at least a predetermined time before the start of a time slot.

Describes a method of wireless communication. The method may include: establishing a connection with the base station at the UE, the connection supporting two or more CCs in the TAG; at the UE, identifying for supporting different start times or durations on different CCs Transmission capability; and send an indication of the capability to the base station.

A device for wireless communication is described. The device may include: a component for establishing a connection with a base station at the UE, the connection supporting two or more CCs in the TAG; The start time or duration of the transmission capability component; and the component used to send an indication of the capability to the base station.

Another device for wireless communication is described. The device may include a processor, a memory for electronic communication with the processor, and instructions stored in the memory. These instructions can be used to make the processor perform the following operations: establish a connection with the base station at the UE, and the connection supports two or more CCs in the TAG; at the UE, identification is used to support different CCs The ability to transmit with different start times or durations; and send an indication of the ability to the base station.

Describes a non-transitory computer readable medium for wireless communication. The non-transitory computer-readable medium may include instructions that can be used by the processor to perform the following operations: establish a connection with the base station at the UE, the connection supporting two or more CCs in the TAG; at the UE, the identification To support the ability of transmissions with different start times or durations on different CCs; and to send an indication of the ability to the base station.

In some examples of the methods, devices, and non-transitory computer-readable media described above, the identification includes: identification for each of a plurality of different frequency bands or a combination of different frequency bands, support can have different The ability to start time or duration of transmission.

In some examples of the methods, devices, and non-transitory computer-readable media described above, it may be determined based at least in part on the number of transmission RF chains available at the UE for use in the plurality of different frequency bands. The ability to support different start times or durations for each or a combination of different frequency bands. In some examples of the methods, devices, and non-transitory computer readable media described above, the plurality of different frequency bands or a combination of different frequency bands includes the continuous carrier frequency in-band of each RF chain at the UE. In some examples of the methods, devices, and non-transitory computer readable media described above, the plurality of different frequency bands or a combination of different frequency bands includes in-band non-contiguous carrier frequencies for multiple RF chains at the UE Or inter-band carrier frequency.

Describes a method of wireless communication. The method may include: establishing a connection with a base station at the UE, the connection supporting two or more CCs in different TAGs; at the UE, identifying an overlap threshold corresponding to the amount of time for which power control restrictions are exempted, The new transmission on the first CC of the first TAG may overlap with the last part of the existing transmission on the second CC of the second TAG; and an indication of the overlap threshold is sent to the base station.

A device for wireless communication is described. The apparatus may include: means for establishing a connection with the base station at the UE, the connection supporting two or more CCs in different TAGs; and the amount of time for recognizing and exempting power control restrictions at the UE The corresponding overlap threshold component, in which the new transmission on the first CC of the first TAG can overlap the last part of the existing transmission on the second CC of the second TAG; and is used to send an indication of the overlap threshold to the base station的Components.

Another device for wireless communication is described. The device may include a processor, a memory for electronic communication with the processor, and instructions stored in the memory. These instructions can be used to make the processor perform the following operations: establish a connection with the base station at the UE, the connection supports two or more CCs in different TAGs; at the UE, identify and exempt power control restrictions The overlap threshold corresponding to the amount of time, where the new transmission on the first CC of the first TAG can overlap the last part of the existing transmission on the second CC of the second TAG; and an indication of the overlap threshold is sent to the base station.

Describes a non-transitory computer readable medium for wireless communication. The non-transitory computer-readable medium may include instructions that can be used by the processor to perform the following operations: establish a connection with the base station at the UE, the connection supporting two or more CCs in different TAGs; at the UE, Identify the overlap threshold corresponding to the amount of time that the power control restriction is exempted, where the new transmission on the first CC of the first TAG can overlap with the last part of the existing transmission on the second CC of the second TAG; and send to the base station An indication of the overlap threshold.

In some examples of the methods, devices, and non-transitory computer-readable media described above, the transmit power of the UE may exceed the maximum transmit power threshold for a period of time as much as the overlap threshold. In some examples of the methods, devices, and non-transitory computer-readable media described above, the overlap threshold is applied to the beginning or end of transmission on one or more of the CCs.

In addition, some examples of the methods, devices, and non-transitory computer-readable media described above may also include: receiving uplink transmissions for uplink transmissions in consecutive time slots on the first CC and the second CC The processing, features, components, or instructions permitted by the road resource. In addition, some examples of the methods, devices and non-transitory computer-readable media described above may also include: processing, features, and components for determining that the timing difference between the first CC and the second CC exceeds the overlap threshold Or instructions. In addition, some examples of the methods, devices, and non-transitory computer-readable media described above may also include: a method for modifying one or both of the first CC or the second CC based at least in part on the timing difference The processing, feature, component, or instruction of the uplink transmission. The modification may include one of the following: discarding the first CC transmission ending at the time slot boundary between the consecutive time slots, discarding the second CC transmission starting at the time slot boundary, reducing the first CC transmission, and the second CC Transmit or both transmit power, discard the last symbol transmitted by the first CC, or discard the first symbol transmitted by the second CC.

Some examples of the methods, devices, and non-transitory computer-readable media described above may also include processing, features, components, or instructions for the following operations: prior to the modification, based at least in part on the transmission and communication with the first CC The priority order associated with each of the second CC transmissions is to select the first CC transmission or the second CC transmission to be discarded or sent with a reduced power.

Describes a method of wireless communication. The method may include: establishing a connection with a UE having two or more CCs in a TAG or in different TAGs; receiving from the UE indicating whether the UE can support different start times or durations on different CCs. The indication of the transmission and the overlap threshold corresponding to the amount of time that the power control restriction is exempted, where under the power control restriction, the new transmission on the first CC of the first TAG can be the same as the existing transmission on the second CC of the second TAG The last part of the overlapped; based at least in part on the indication and the overlap threshold, use the two or more CCs to schedule a plurality of uplink transmissions for the UE; and send to the UE including for the plurality of uplink transmissions A plurality of uplink grants of resource grants for link transmission.

A device for wireless communication is described. The apparatus may include: means for establishing a connection with a UE that has two or more CCs in a TAG or in different TAGs; and means for receiving an indication from the UE whether the UE can support different CCs on different CCs. An indication of the start time or duration of the transmission and the means of overlapping thresholds corresponding to the amount of time exempted from power control restrictions, where under the power control restrictions, a new transmission on the first CC of the first TAG can be compared with the second TAG. The last part of the existing transmission on the second CC overlaps; means for using the two or more CCs to schedule a plurality of uplink transmissions for the UE based at least in part on the indication and the overlap threshold ; And means for sending a plurality of uplink grants including resource grants for the plurality of uplink transmissions to the UE.

Another device for wireless communication is described. The device may include a processor, a memory for electronic communication with the processor, and instructions stored in the memory. These instructions can be used to make the processor perform the following operations: establish a connection with a UE that has two or more CCs in a TAG or in different TAGs; receive an indication from the UE whether the UE can support having two or more CCs on different CCs An indication of transmissions of different start times or durations and an overlap threshold corresponding to the amount of time that the power control restriction is exempted. Under the power control restriction, a new transmission on the first CC of the first TAG can be compared with the second TAG. The last part of the existing transmissions on the second CC overlaps; based at least in part on the indication and the overlap threshold, using the two or more CCs to schedule a plurality of uplink transmissions for the UE; and to the UE Send a plurality of uplink grants including resource grants for the plurality of uplink transmissions.

Describes a method of wireless communication. The method may include: at the UE, determining that the transmit power for sending a plurality of uplink transmissions via two or more component carriers (CC) in a time slot exceeds a maximum for the UE during at least a part of the time slot Power threshold; discard at least part of the first uplink transmission of the plurality of uplink transmissions, wherein the final transmit power is less than or equal to the maximum power threshold; and use one or more of the CCs, at this time The remaining uplink transmissions among the plurality of uplink transmissions are sent during the slot.

A device for wireless communication is described. The apparatus may include: means for determining that the transmit power for sending a plurality of uplink transmissions via two or more CCs in a time slot exceeds a maximum power threshold for the UE during at least a part of the time slot; Means for discarding at least a part of the first uplink transmission of the plurality of uplink transmissions, wherein the final transmit power is less than or equal to the maximum power threshold; and for using one or more of the CCs, in During the time slot, the remaining uplink transmission components of the plurality of uplink transmissions are sent.

Another device for wireless communication is described. The device may include a processor, a memory for electronic communication with the processor, and instructions stored in the memory. The instructions can be used to cause the processor to perform the following operations: determine that the transmit power for sending a plurality of uplink transmissions via two or more CCs in a time slot exceeds the maximum for the UE during at least a portion of the time slot Power threshold; discard at least part of the first uplink transmission of the plurality of uplink transmissions, wherein the final transmit power is less than or equal to the maximum power threshold; and use one or more of the CCs, at this time The remaining uplink transmissions among the plurality of uplink transmissions are sent during the slot.

Describes a non-transitory computer readable medium for wireless communication. The non-transitory computer-readable medium may include instructions that can be used by the processor to perform the following operations: determine that the transmit power of sending a plurality of uplink transmissions via two or more CCs in a time slot exceeds at least at least that time slot A maximum power threshold for the UE during a part of the period; discard at least a part of the first uplink transmission of the plurality of uplink transmissions, wherein the final transmit power is less than or equal to the maximum power threshold; and use one or of the CCs Multiple CCs send the remaining uplink transmissions among the plurality of uplink transmissions during the time slot.

In some examples of the methods, devices, and non-transitory computer-readable media described above, the determination can be performed for each of a plurality of symbols of the time slot. In some examples of the methods, devices, and non-transitory computer-readable media described above, the determination and the discarding are performed when the plurality of uplink transmissions are formatted for transmission during the time slot.

Some examples of the methods, devices, and non-transitory computer readable media described above may also include: for identifying the priority order associated with two or more overlapping uplink transmissions whose total power exceeds the maximum power threshold Processing, features, components or instructions. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: The priority order of other uplink transmissions is lower than that of the lower priority order, and the processing, feature, component, or instruction of the first uplink transmission is discarded.

Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: uplink transmissions for identifying a first subset of the plurality of uplink transmissions with a first priority order The first priority is lower than the at least second priority of one or more other subsets of the plurality of uplink transmissions, and the first subset includes the first Uplink transmission. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: an associated first uplink transmission for determining that the first uplink transmission has a difference equal to or greater than the difference between the following two Uplink transmit power processing, features, components, or instructions: maximum power threshold, total power of other uplink transmissions that overlap with the first uplink transmission among the plurality of uplink transmissions. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include processing, features, components, or instructions for discarding the first uplink transmission.

Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: processing, features, components, or instructions for identifying the first symbol of the time slot, where the first symbol of the time slot is In the symbol, overlapping uplink transmissions may have a total transmit power that exceeds the maximum power threshold for the UE. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: for identifying one or more uplinks that have a transmission start time before the first symbol in the overlapping uplink transmission. Link transmission, the first uplink transmission starts with the processing, feature, component, or instruction of the first symbol. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: a process for discarding the first uplink transmission based at least in part on the first uplink transmission starting with the first symbol , Features, components or instructions.

Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: processing, features, components, or instructions for identifying the first symbol of the time slot, where the first symbol of the time slot is In the symbol, the overlapping uplink transmission set may have a total transmit power that exceeds the maximum power threshold for the UE. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: processing, features, components, or instructions for identifying the first subset of the overlapping uplink transmission set, wherein the The first subset has a first priority order that is lower than at least a second priority order of one or more other subsets of the overlapping uplink transmission set, and may have a value equal to or greater than the maximum power threshold and the total transmit power. The difference between the transmit power. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: processing for determining the minimum power among uplink transmissions in which the first uplink transmission has a first subset, Features, components or instructions. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include processing, features, components, or instructions for discarding the first uplink transmission.

Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: processing, features, components, or instructions for identifying the first symbol of the time slot, where the first symbol of the time slot is In the symbol, the overlapping uplink transmission set may have a total transmit power that exceeds the maximum power threshold for the UE. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: processing, features, components, or instructions for identifying the first subset of the overlapping uplink transmission set, wherein the The first subset may have a first priority order that is lower than at least a second priority order of one or more other subsets of the overlapping uplink transmission set. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: processing, features, processes for randomly selecting one or more uplink transmissions in the first subset to be discarded Components or instructions. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include processes, features, components, or instructions for discarding selected one or more uplink transmissions.

Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: processing, features, components, or instructions for identifying the first symbol of the time slot, where the first symbol of the time slot is In the symbol, the overlapping uplink transmission set may have a total transmit power that exceeds the maximum power threshold for the UE. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: processing for identifying that at least one uplink transmission in the set of overlapping uplink transmissions may have a first priority, A feature, component, or instruction has a first priority order that has a higher priority order than at least a second priority order of one or more other uplink transmissions of the overlapping uplink transmission set. Some examples of the methods, devices and non-transitory computer-readable media described above may also include: scaling the transmit power of the at least one uplink transmission so that the transmit power of the UE is less than or equal to the maximum power threshold Processing, features, components or instructions.

In some examples of the methods, devices, and non-transitory computer readable media described above, the at least one uplink transmission includes HARQ feedback information, SR information, or a combination thereof.

In some examples of the methods, devices, and non-transitory computer-readable media described above, the plurality of uplink transmissions includes uplink transmissions of the first subset of the first timing advance group (TAG) And the second timing advances the uplink transmission of the second subset of the group, the UE attaches the uplink transmission of the first subset to the first accompanying uplink transmission subset, and adds the uplink transmission of the second subset The uplink transmission is attached to the second accompanying uplink transmission subset. The discarding may be performed based on the attached uplink transmission subset, and the priority order of the accompanying subset may be set to this subset. The highest priority for centralized transmission.

Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: processing, features, components, or instructions for identifying the first symbol of the time slot, where the first symbol of the time slot is In the symbol, the overlapping uplink transmission set may have a total transmit power that exceeds the maximum power threshold for the UE. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: processing, features, and components for identifying the first subset and the second subset of the overlapping uplink transmission set Or instruction, the first subset has a transmission start time before the first symbol, and the second subset starts at the first symbol. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include processing, features, components, or instructions for determining the total transmit power of the first subset. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: processing, features, and components for determining the priority order associated with each uplink transmission of the second subset Or instructions. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: a method for reducing the transmit power in the second subset to be less than or equal to the highest difference between the maximum power threshold and the total transmit power The prioritized uplink transmits the processes, features, components, or instructions added to the first subset. Some examples of the methods, devices, and non-transitory computer readable media described above may also include processing, features, components, or instructions for updating the total transmit power based on the added highest priority uplink transmission. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: for repeating the increase and the update until none of the remaining uplink transmissions in the second subset has a value less than or equal to The processing, feature, component, or instruction of the transmit power of the difference between the maximum power threshold and the updated total transmit power. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include processing, features, components, or instructions for discarding any remaining uplink transmissions in the second subset.

In some examples of the methods, devices, and non-transitory computer-readable media described above, the two or more uplink transmissions of the second subset may have the highest priority, and the increase includes: randomly One or all of the two or more uplink transmissions are selected to be added to the first subset. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: after the repetition, scaling the transmit power of one or more remaining uplink transmissions to match the maximum power The processing, feature, component, or instruction corresponding to the difference between the threshold and the updated total transmit power.

Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: one or more transmissions in the first subset are discarded so that the maximum power threshold can be increased without exceeding the maximum power threshold. Processes, features, components, or instructions transmitted in the second subset. In some examples of the methods, devices, and non-transitory computer-readable media described above, discarding the one or more transmissions in the first subset also includes: discarding the same timing advance group in the first subset All transmissions.

Describes a method of wireless communication. The method may include: establishing a connection with a base station at the UE, the connection supporting two or more CCs; and during a time slot, receiving data for a plurality of uplink transmissions on the two or more CCs A plurality of uplink resource grants, wherein the plurality of grants are received at least a predetermined time before the start of the time slot; it is determined that the transmit power used to send the plurality of uplink transmissions exceeds at least a part of the time slot The maximum power threshold used for the UE during the period; the transmit power of at least a subset of the plurality of uplink transmissions is scaled to specify that the transmit power is less than or equal to the maximum power threshold; and one or more of the CCs are used , Send the plurality of uplink transmissions during the time slot.

A device for wireless communication is described. The apparatus may include: means for establishing a connection with the base station at the UE, the connection supporting two or more CCs; A component of a plurality of uplink resource grants for an uplink transmission, wherein the plurality of grants are received at least a predetermined time before the start of the time slot; used to determine the transmit power for sending the plurality of uplink transmissions A member that exceeds the maximum power threshold for the UE during at least a part of the time slot; used to scale the transmit power of at least a subset of the plurality of uplink transmissions to specify that the transmit power is less than or equal to the maximum power threshold And means for using one or more of the CCs to send the plurality of uplink transmissions during the time slot.

Another device for wireless communication is described. The device may include a processor, a memory for electronic communication with the processor, and instructions stored in the memory. These instructions can be used to cause the processor to perform the following operations: establish a connection with the base station at the UE, and the connection supports two or more CCs; A plurality of uplink resource grants for a plurality of uplink transmissions, wherein the plurality of grants are received at least a predetermined time before the start of the time slot; determine the transmit power used to send the plurality of uplink transmissions Exceeding the maximum power threshold for the UE during at least a part of the time slot; scaling the transmit power of at least a subset of the plurality of uplink transmissions to specify that the transmit power is less than or equal to the maximum power threshold; and using the One or more CCs in the CC send the plurality of uplink transmissions during the time slot.

Describes a non-transitory computer readable medium for wireless communication. The non-transitory computer-readable medium may include instructions that can be used by the processor to perform the following operations: establish a connection with the base station at the UE, the connection supports two or more CCs; A plurality of uplink resource grants for a plurality of uplink transmissions on one or more CCs, wherein the plurality of grants are received at least a predetermined time before the start of the time slot; it is determined to send the plurality of The transmit power of the uplink transmission exceeds the maximum power threshold for the UE during at least a part of the time slot; the transmit power of at least a subset of the plurality of uplink transmissions is scaled to specify that the transmit power is less than or equal to Maximum power threshold; and using one or more of the CCs to send the plurality of uplink transmissions during the time slot.

Some examples of the methods, devices and non-transitory computer-readable media described above may also include: for receiving additional permission for additional uplink transmission after the predetermined time and before the beginning of the time slot Processing, features, components or instructions. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: in response to determining that the additional uplink transmission increases the total transmit power of the UE above the maximum power threshold, discarding The processing, features, components, or instructions for this additional uplink transmission. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: in response to determining that the additional uplink transmission did not increase the total transmit power of the UE above the maximum power threshold, Send this additional uplink transmission process, feature, component, or instruction.

In some examples of the methods, devices, and non-transitory computer-readable media described above, the predetermined time for receiving the plurality of licenses may be pre-configured or signaled between the base station and the UE . In some examples of the methods, devices, and non-transitory computer-readable media described above, the predetermined time for receiving the plurality of licenses may be based at least in part on the capabilities of the UE.

In some examples of the methods, devices, and non-transitory computer-readable media described above, the first CC of the two or more CCs belongs to the second CC of the two or more CCs. For different timing advance groups (TAG), the start time of the time slot of the first CC is before the end time of the previous time slot of the second CC. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: at the UE, identifying the overlap threshold corresponding to the amount of time during which the maximum power threshold for the UE can be exempted Processing, features, components or instructions. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include: determining the difference between the start time of the time slot of the first CC and the end time of the previous time slot of the second CC A process, feature, component, or instruction whose overlap period exceeds the overlap threshold. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include processes, features, components, or instructions for the following operations: discarding overlapping uplink transmissions of the first CC or the second CC, Or the transmit power used for the uplink transmission of each of the first CC and the second CC is scaled to provide a total transmit power less than or equal to the maximum power threshold during the overlap period.

Describes a method of wireless communication. The method may include: establishing a connection with a base station at a user equipment (UE), the connection supporting two or more component carriers (CC); during a time slot, receiving data for the two or more CCs The plurality of uplink resource grants for the plurality of uplink transmissions on the uplink transmission, wherein the plurality of grants are received at least a predetermined time before the start of the time slot; identify the first uplink in the plurality of uplink transmissions The link transmission has a first order of priority, and the first order of priority is higher than at least a second order of priority of a second uplink transmission among the plurality of uplink transmissions that overlap with the first uplink transmission; Determine the first transmit power of the first uplink transmission; scale the second transmit power of the second uplink transmission so that the total transmit power of the UE is less than or equal to the maximum power threshold; and use the two or more CC, send the plurality of uplink transmissions during the time slot.

A device for wireless communication is described. The apparatus may include: means for establishing a connection with a base station at a user equipment (UE), the connection supporting two or more component carriers (CC); A component of a plurality of uplink resource grants for a plurality of uplink transmissions on one or more CCs, wherein the plurality of grants are received at least a predetermined time before the start of the time slot; used to identify the plurality The first uplink transmission among the uplink transmissions has a first priority order, and at least the second uplink transmission among the plurality of uplink transmissions overlapping with the first uplink transmission Compared with the priority order, the first priority order is higher; the component used to determine the first transmit power of the first uplink transmission; the second transmit power used to scale the second uplink transmission so that the total UE’s A member whose transmission power is less than or equal to the maximum power threshold; and a member for transmitting the plurality of uplink transmissions during the time slot using the two or more CCs.

Another device for wireless communication is described. The device may include a processor, a memory for electronic communication with the processor, and instructions stored in the memory. These instructions can be used to cause the processor to perform the following operations: establish a connection with the base station at the user equipment (UE), the connection supports two or more component carriers (CC); A plurality of uplink resource grants for a plurality of uplink transmissions on the two or more CCs, wherein the plurality of grants are received at least a predetermined time before the start of the time slot; identify the plurality of uplinks The first uplink transmission in the link transmission has a first priority order compared with at least a second priority order of the second uplink transmission among the plurality of uplink transmissions overlapping with the first uplink transmission , The first priority is higher; determine the first transmit power of the first uplink transmission; scale the second transmit power of the second uplink transmission so that the total transmit power of the UE is less than or equal to the maximum power threshold; and Using the two or more CCs, the plurality of uplink transmissions are sent during the time slot.

Describes a non-transitory computer readable medium for wireless communication. The non-transitory computer-readable medium may include instructions that can be used by the processor to perform the following operations: establish a connection with the base station at the user equipment (UE), the connection supporting two or more component carriers (CC); During a time slot, receive a plurality of uplink resource grants for a plurality of uplink transmissions on the two or more CCs, wherein the plurality of grants are received at least a predetermined time before the start of the time slot Recognizing that the first uplink transmission in the plurality of uplink transmissions has a first priority order, and the second uplink transmission in the plurality of uplink transmissions overlapping with the first uplink transmission At least the second priority order is higher than the first priority order; the first transmission power of the first uplink transmission is determined; the second transmission power of the second uplink transmission is scaled so that the total transmission power of the UE is less than Or equal to the maximum power threshold; and using the two or more CCs, the plurality of uplink transmissions are sent during the time slot.

Some examples of the methods, devices, and non-transitory computer-readable media described above may also include processing, features, components, or instructions for the following operations: there is a remaining power between the total transmit power of the UE and the maximum power threshold Available; Identifies a third uplink transmission that overlaps with the first uplink transmission and the second uplink transmission, which may have a lower priority order than the first priority order and the second priority order. Some examples of the methods, devices, and non-transitory computer-readable media described above may also include processing, features, components, or instructions for allocating remaining power to the third uplink transmission.

In some examples of the methods, devices, and non-transitory computer-readable media described above, uplink transmissions that have already started may have a higher priority order than other uplink transmissions. In some examples of the methods, devices, and non-transitory computer-readable media described above, it can be based on whether the uplink transmission is an ongoing transmission, the type of uplink transmission, the information to be sent, or any of them. Combine, prioritize the multiple uplink transmissions.

In some examples of the methods, devices, and non-transitory computer-readable media described above, the UE also further scales more than one uplink transmission with the same priority order, so that the total transmit power of the UE can be less than or equal to Maximum power threshold. In some examples of the methods, devices, and non-transitory computer-readable media described above, each symbol transmitted on the uplink during the time slot may have the same transmit power.

The various techniques described herein provide for management of transmissions using multiple component carriers (CCs), where transmissions using one or more of the CCs can span less than a complete transmission time interval (TTI) (for example, transmission time slot , Sub-frame or other TTI). In some cases, the UE may signal one or more capabilities related to carrier aggregation, which the base station may use to allow enhanced scheduling flexibility at the base station. In some cases, the UE may signal the capability indication of the UE capability to the base station to support transmissions with different start times or durations on different CCs. Subsequently, the base station can schedule transmissions for the UE, where transmissions on different CCs can have different start times or durations, which can provide enhanced scheduling flexibility, enhanced communication with the UE, and increased network connectivity. Road efficiency.

In some cases, the UE can support CC, where different CCs can belong to different timing advance groups (TAG), so that the start time of TTI (for example, symbols, time slots, subframes, and combinations thereof) is not synchronized by as much as A certain threshold. Such synchronization offsets may cause the UE's transmit power to have an instantaneous value that exceeds the maximum power threshold. In some cases, the UE may provide the UE with an indication of the overlap threshold, which indicates the amount of time the UE transmit power exceeds the maximum power threshold. The base station can use the overlap threshold, and schedule the UE to use multiple CCs that can be in different TAGs for transmission, which can provide the base station with additional scheduling flexibility.

In some cases, the UE may also perform power control on multiple CCs to provide uplink transmit power that meets the maximum power threshold. The transmission of different CCs may have different start times, different stop times, different durations, or Its combination. In some cases, the UE may receive multiple uplink resource grants for multiple uplink transmissions on two or more CCs during a time slot, and determine that during at least a part of the time slot, use The transmit power for sending the uplink transmission exceeds the maximum power threshold for the UE. In response to the determination, the UE may discard at least a part of the first uplink transmission of the plurality of uplink transmissions, where the final transmit power is less than or equal to the maximum power threshold, and use one or more of the CCs in the The remaining uplink transmissions among the plurality of uplink transmissions are sent during the time slot. Additionally or alternatively, the UE may scale the transmit power of one or more CCs in the CC for at least a part of the time slot, so that the transmit power of the UE is less than or equal to the maximum power threshold. In some cases, the UE may perform forward power scaling for uplink grants received at least a predetermined time before the start of a time slot.

First, in the context of a wireless communication system, describe the state of the content of this case. By referring to the device diagrams, system diagrams, radio resource views and flowcharts related to the technology of power control using carrier aggregation in wireless communications, the content of this case is further illustrated and described.

FIG. 1 illustrates an example of a wireless communication system 100 according to various aspects of the content of the present case. The wireless communication system 100 includes a base station 105, a UE 115, and a core network 130. In some examples, the wireless communication system 100 may be a long-term evolution (LTE) network, an improved LTE (LTE-A) network, or a new radio (NR) network. In some cases, the wireless communication system 100 may support enhanced broadband communication, ultra-reliable (for example, mission-critical) communication, low-latency communication, or communication with low-cost and low-complexity devices. In some cases, the UE 115 and the base station 105 may use multiple CCs to communicate, and one or more of these CCs may be used to transmit data with different durations, different start times, different end times, or other CCs. Combined transmission.

The base station 105 can wirelessly communicate with the UE 115 via one or more base station antennas. The base station 105 described herein may include or be called by those of ordinary skill in the art: base station transceiver, radio base station, access point, radio transceiver, Node B, eNode B (eNB), next-generation Node B, or giga node B (any of them can be called gNB), home node B, home e node B, or some other appropriate term. The wireless communication system 100 may include different types of base stations 105 (for example, macro cell base stations or small cell base stations). The UE 115 described herein can communicate with various types of base stations 105 and network equipment (including macro eNBs, small cell eNBs, gNBs, relay base stations, etc.).

Each base station 105 may be associated with a specific geographic coverage area 110, wherein the specific geographic coverage area 110 supports communication with each UE 115. Each base station 105 can provide communication coverage for a corresponding geographic coverage area 110 via a communication link 125, and the communication link 125 between the base station 105 and the UE 115 can use one or more carriers. The communication link 125 illustrated in the wireless communication system 100 may include uplink transmission from the UE 115 to the base station 105 or downlink transmission from the base station 105 to the UE 115. Downlink transmission can also be referred to as forward link transmission, and uplink transmission can also be referred to as reverse link transmission.

The geographic coverage area 110 of the base station 105 may be divided into some sectors that only constitute a part of the geographic coverage area 110, and each sector may be associated with a cell. For example, each base station 105 can provide communication coverage for macro cells, small cells, hot spots, or other types of cells, or various combinations thereof. In some instances, the base station 105 may be mobile, thus providing communication coverage of a mobile geographic coverage area 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, and overlapping geographic coverage areas 110 associated with different technologies may be supported by the same base station 105 or different base stations 105. For example, the wireless communication system 100 may include a heterogeneous LTE/LTE-A or NR network, where different types of base stations 105 provide coverage for various geographic coverage areas 110.

The term "cell" represents a logical communication entity used for communication with the base station 105 (for example, via a carrier), and can be used with an identifier used to distinguish adjacent cells operating via the same or different carriers (for example, a physical cell identifier). (PCID), virtual cell identifier (VCID)). In some instances, the carrier can support multiple cells, depending on the different protocol types that provide access to different types of devices (for example, machine type communication (MTC), narrowband Internet of Things (NB-IoT), enhanced mobile Broadband (eMBB), etc.) to configure different cells. In some cases, the term "cell" may represent a portion of the geographic coverage area 110 (eg, sector) on which the logical entity operates.

The UE 115 may be dispersed in the wireless communication system 100, and each UE 115 may be stationary or mobile. The UE 115 may also be called a mobile device, a wireless device, a remote device, a handheld device, or a user equipment, or some other appropriate terminology, where "device" may also be represented as a unit, a station, a terminal, or a client. In addition, the UE 115 may also be a personal electronic device, such as a cellular phone, a personal digital assistant (PDA), a tablet computer, a laptop computer, or a personal computer. In some instances, UE 115 can also be represented as a wireless area loop (WLL) station, Internet of Things (IoT) device, Internet of Everything (IoE) device or MTC device, etc., which can be used in home appliances, vehicles, meters, etc. Implemented in various items such as.

Some UEs 115 such as MTC or IoT devices may be low-cost or low-complexity devices, and may provide automated communication between machines (for example, via machine-to-machine (M2M) communication). M2M or MTC may represent a data communication technology that allows devices to communicate with each other or with the base station 105 without manual intervention. In some instances, M2M communication or MTC may include communication from a device integrated with a sensor or meter, where the sensor or meter measures or retrieves information and relays the information to a central server The central server or application can make full use of the information or present the information to people interacting with the program or application. Some UE 115 may be designed to collect information or enable automated behavior of the machine. Examples of applications for MTC equipment include: smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wildlife monitoring, weather and geological event monitoring, fleet management and tracking, remote security sensing, physical access Control and transaction-based business billing.

In some cases, the UE 115 can also directly communicate with other UEs 115 (for example, using peer-to-peer (P2P) or device-to-device (D2D) protocols). One or more of a group of UEs 115 that use D2D communication may be located in the geographic coverage area 110 of the base station 105. The other UEs 115 in the group may be located outside the geographic coverage area 110 of the base station 105 or may not be able to receive transmissions from the base station 105. In some cases, a group of UEs 115 communicating via D2D communication may adopt a one-to-many (1:M) system in which each UE 115 sends a signal to every other UE 115 in the group. In some cases, the base station 105 facilitates the scheduling of resources for D2D communication. In other cases, without involving the base station 105, D2D communication is performed between the UE 115.

The base station 105 can communicate with the core network 130 and communicate with each other. For example, the base station 105 can interact with the core network 130 via the backhaul link 132 (for example, via the S1 interface or other interfaces). The base stations 105 can communicate with each other directly (for example, directly between the base stations 105) or indirectly (for example, via the core network 130) via the backhaul link 134 (for example, via X2 or other interfaces). .

The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connection, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC), which may include at least one mobility management entity (MME), at least one service gateway (S-GW), and at least one packet data network (PDN) gateway (P -GW). The MME can manage non-access layer (eg, control plane) functions, such as mobility, authentication, and bearer management of the UE 115 served by the base station 105 associated with the EPC. User IP packets can be transmitted via the S-GW, where the S-GW itself can be connected to the P-GW. The P-GW can provide IP address allocation and other functions. The P-GW can be connected to the IP service of the network service provider. The service provider's IP services can include access to the Internet, intranet, IP Multimedia Subsystem (IMS), or packet switching (PS) streaming services.

At least some of the network equipment (eg, base station 105) may include sub-components such as an access network entity, which may be an instance of an access node controller (ANC). Each access network entity may communicate with the UE 115 via multiple other access network transmission entities (which may be referred to as a radio head, a smart radio head, or a transmission/reception point (TRP)). In some configurations, the various functions of each access network entity or base station 105 can be distributed in various network devices (for example, radio heads and access network controllers), or can be combined in a single network device (For example, base station 105).

The wireless communication system 100 may operate using one or more frequency bands (which are generally in the range of 300 MHz to 300 GHz). Generally, the region from 300 MHz to 3 GHz is called the ultra-high frequency (UHF) region or decimeter band, because its wavelength ranges from about one decimeter to one meter in length. UHF waves may be blocked by buildings and environmental features or change direction. However, the isowave can penetrate the structure sufficiently so that the macro cell can provide service to the UE 115 located indoors. Compared with the transmission of smaller frequencies and longer wavelengths in the high frequency (HF) or ultra-high frequency (VHF) part of the frequency spectrum below 300 MHz, the transmission of UHF waves can be combined with smaller antennas and shorter distances. (For example, less than 100 km) associated.

In addition, the wireless communication system 100 can also use a frequency band from 3 GHz to 30 GHz (which is also referred to as a centimeter band) to operate in an ultra-high frequency (SHF) region. The SHF area includes frequency bands such as the 5 GHz industrial, scientific, and medical (ISM) band, which can be used opportunistically by devices that can tolerate interference from other users.

In addition, the wireless communication system 100 can also operate in the extremely high frequency (EHF) region of the spectrum (for example, from 30 GHz to 300 GHz) (this region is also referred to as the millimeter wave band). In some instances, the wireless communication system 100 can support millimeter wave (mmW) communication between the UE 115 and the base station 105, and the EHF antenna of the corresponding device may be even smaller and tighter than the UHF antenna. In some cases, this may facilitate the use of antenna arrays within UE 115. However, compared with SHF or UHF transmission, the propagation of EHF transmission may suffer greater atmospheric attenuation and shorter transmission distance. In transmissions using one or more different frequency regions, the technology disclosed herein can be used; the designated use of frequency bands across these frequency regions may be different due to countries or regulatory agencies.

In some examples, the base station 105 or the UE 115 may be equipped with multiple antennas, which may be used to employ technologies such as transmit diversity, receive diversity, multiple input multiple output (MIMO) communication, or beamforming. For example, the wireless communication system 100 can use a transmission scheme between a transmitting device (for example, base station 105) and a receiving device (for example, UE 115), where the transmitting device is equipped with multiple antennas, and the receiving device is also equipped with one or more antennas. . MIMO communication can use multipath signal propagation to increase spectral efficiency by sending or receiving multiple signals through different spatial layers, where these different spatial layers can be called spatial multiplexing. For example, the transmitting device may transmit the multiple signals via different antennas or different combinations of antennas. Likewise, the receiving device may receive the multiple signals via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream, and may carry bits associated with the same data stream (for example, the same code character) or different data streams. Different spatial layers can be associated with different antenna ports for channel measurement and reporting. MIMO technology includes single-user MIMO (SU-MIMO) and multi-user MIMO (MU-MIMO). Under SU-MIMO, multiple spatial layers are sent to the same receiving device. Under MU-MIMO, multiple The space layer is sent to multiple devices.

In some cases, the wireless communication system 100 may be a packet-based network that operates according to hierarchical protocol stacking. In the user plane, communication at the bearer or packet data convergence protocol (PDCP) layer can be IP-based. In some cases, the radio link control (RLC) layer can perform packet segmentation and reassembly to communicate via logical channels. The media access control (MAC) layer can perform priority processing and multiplexing from logical channels to transmission channels. The MAC layer can also use Hybrid Automatic Repeat Request (HARQ) to provide retransmission of the MAC layer to improve link efficiency. In the control plane, the radio resource control (RRC) protocol layer can provide the establishment, configuration and maintenance of the RRC connection between the UE 115 and the base station 105 or the core network 130 supporting the radio bearer for user plane data. At the physical (PHY) layer, the transmission channel can be mapped to the physical channel.

In some cases, the UE 115 and the base station 105 can support data retransmission to increase the probability of successfully receiving the data. HARQ feedback is a technique to increase the possibility of receiving data correctly via the communication link 125. HARQ may include a combination of error correction (for example, using cyclic redundancy check (CRC)), forward error correction (FEC), and retransmission (for example, automatic repeat request (ARQ)). HARQ can increase the transmission volume of the MAC layer under poor radio conditions (for example, signal-to-noise ratio conditions). In some cases, the wireless device may support HARQ feedback in the same time slot, where in this case, the device may provide HARQ feedback in the time slot for data received in previous symbols of a specific time slot. In other cases, the device can provide HARQ feedback in subsequent time slots, or according to some other time interval.

The time interval in LTE or NR can be expressed as a multiple of the basic time unit (for example, it can represent a sampling period of Ts = 1/30, 720,000 seconds). The time interval of communication resources can be organized according to radio frames, where each radio frame has a duration of 10 milliseconds (ms), and the frame period can be expressed as Tf = 307,200Ts. These radio frames can be identified by the system frame number (SFN) from 0 to 1023. Each frame can include 10 sub-frames numbered from 0 to 9, and each sub-frame can have a duration of 1 ms. The subframe can be further divided into 2 time slots, each time slot has a duration of 0.5 ms, and each time slot can contain 6 or 7 modulation symbol periods (depending on the cyclic word from the first code to each symbol period) The length of the first). Excluding the cyclic prefix, each symbol can contain 2048 sampling periods. In some cases, the sub-frame may be the smallest scheduling unit of the wireless communication system 100, which may be referred to as a transmission time interval (TTI). In other cases, the minimum scheduling unit of the wireless communication system 100 may be shorter than the sub-frame, or may be dynamically selected (for example, in the short pulse of shortened TTI (sTTI), or in the selected short pulse using sTTI). Component carrier).

In some wireless communication systems, the time slot can be further divided into multiple micro time slots containing one or more symbols. In some examples, the micro-time slot or the symbol of the micro-time slot may be the smallest unit of scheduling. For example, each symbol may change in duration according to the subcarrier interval or the operating frequency band. In addition, some wireless communication systems may implement time slot aggregation, in which multiple time slots or micro time slots are aggregated together and used for communication between the UE 115 and the base station 105.

The term "carrier" represents a set of radio spectrum resources with a prescribed physical layer structure to support communication on the communication link 125. For example, the carrier of the communication link 125 may include a portion of the radio spectrum frequency band that operates according to the physical layer channel used for a given radio access technology. Each physical layer channel can carry user data, control information or other signal transmission. The carrier can be associated with a predetermined frequency channel (for example, E-UTRA absolute radio frequency channel number (EARFCN)), and can be positioned according to a channel raster used for UE 115 discovery. The carrier may be downlink or uplink (for example, in FDD mode), or configured to carry downlink and uplink communications (for example, in TDD mode). In some examples, the signal waveform sent via the carrier may be composed of multiple sub-carriers (for example, using a multi-carrier modulation (MCM) technique such as OFDM or DFT-s-OFDM).

For different radio access technologies (for example, LTE, LTE-A, NR, etc.), the organization structure of the carrier may be different. For example, the communication on the carrier can be organized according to TTI or time slot, and each of the TTI or time slot can include user data and control information or signal transmission used to support decoding of the user data. In addition, the carrier may also include dedicated acquisition signal delivery (for example, synchronization signals or system information, etc.) and control signal delivery for coordinating the operation of the carrier. In some instances (for example, in a carrier aggregation configuration), the carrier may also have capture signal delivery or control signal delivery for coordinating the operation of the carrier.

The physical channels can be multiplexed on the carrier according to various technologies. For example, time division multiplexing (TDM) technology, frequency division multiplexing (FDM) technology, or hybrid TDM-FDM technology can be used to multiplex the physical control channel and the physical data channel on the downlink carrier. In some instances, the control information sent in the physical control channel can be distributed in different control domains (distributed in a common control domain or a common search space and one or more UE-specific control domains or specific Between the search space of the UE).

The carrier may be associated with a specific bandwidth of the radio frequency spectrum. In some examples, the carrier bandwidth may be referred to as the carrier or the "system bandwidth" of the wireless communication system 100. For example, the carrier bandwidth may be one of a plurality of predetermined bandwidths of the carrier used for a specific radio access technology (for example, 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz). In some instances, each UE 115 being served may be configured to operate on part or all of the carrier bandwidth. In other examples, some UEs 115 may be configured to operate using a narrowband agreement type, where the narrowband agreement type is associated with a predetermined portion or range of a carrier (e.g., a set of subcarriers or RBs) (e.g., Narrowband protocol type "in-band" deployment).

The equipment of the wireless communication system 100 (for example, the base station 105 or the UE 115) may have a hardware configuration that supports communication on a specific carrier bandwidth, or may be configured to support a set of carrier bandwidths on one carrier bandwidth. communication. In some examples, the wireless communication system 100 may include a base station 105 and/or UE that supports simultaneous communication via carriers associated with more than one different carrier bandwidth.

The wireless communication system 100 can support communication with the UE 115 on multiple cells or carriers, and its feature can be called carrier aggregation (CA) or multi-carrier operation. According to the carrier aggregation configuration, the UE 115 may be configured with multiple downlink CCs and one or more uplink CCs. Carrier aggregation can be used in combination with FDD and TDD component carriers.

In some cases, the wireless communication system 100 may use an enhanced component carrier (eCC). The characteristics of eCC can be characterized by one or more characteristics including the following: wider carrier or frequency channel bandwidth, shorter symbol duration, shorter TTI duration, or modified control channel configuration. In some cases, eCC may be associated with carrier aggregation configuration or dual connectivity configuration (for example, when multiple serving cells have sub-optimal or non-ideal backhaul links). In addition, eCC can also be configured to be used in unlicensed spectrum or shared spectrum (for example, allowing more than one service provider to use the spectrum). An eCC with a wider carrier bandwidth feature may include one or more segments, in which UE 115 that cannot monitor the entire carrier bandwidth or is configured to use a limited carrier bandwidth (for example, to save power) can use these Segmented.

In some cases, the eCC may use a different symbol duration from other CCs, which may include: using a reduced symbol duration compared to the symbol duration of other CCs. A shorter symbol duration can be associated with increased spacing between adjacent sub-carriers. A device using eCC (for example, UE 115 or base station 105) can transmit broadband signals with a reduced symbol duration (for example, 16.67 microseconds) (for example, according to frequency channels of 20, 40, 60, 80 MHz, etc.) Or carrier bandwidth). The TTI in eCC can be composed of one or more symbol periods. In some cases, the TTI duration (ie, the number of symbol periods in the TTI) may be variable.

Wireless communication systems such as NR systems can use any combination of licensed, shared, and unlicensed spectrum frequency bands. The flexibility of eCC symbol duration and sub-carrier spacing may allow the use of eCC across multiple spectrums. In some instances, NR sharing of spectrum can increase frequency utilization and spectral efficiency, especially via vertical (eg, across frequency) and horizontal (eg, across time) sharing of resources.

In some cases, the UE 115 and the base station 105 may use two or more CCs to communicate. The various technologies described herein provide transmission using one or more of these CCs, which can span less than a full TTI. (For example, time slot, subframe or other TTI). In some cases, the UE 115 may signal to the base station 105 the capability related to the ability of the UE 115 to send uplink transmissions, where the uplink transmissions have different start times or durations on different CCs, And support different TAGs on different CCs. Subsequently, the serving base station 105 may schedule transmissions for the UE 115, where transmissions on different CCs may have different start times or durations, and where different CCs may be associated with different TAGs. These technologies can provide enhanced scheduling flexibility, enhanced communication with UE 115, and increased network efficiency.

In some cases, the UE 115 may also perform power control on multiple CCs to provide uplink transmit power that meets the maximum power threshold. The transmission of different CCs may have different start times, different stop times, and different durations. Or its combination. In some cases, the UE 115 may receive multiple uplink resource grants for a plurality of uplink transmissions on two or more CCs during a time slot, and determine that during at least a part of the time slot, The transmit power used to send the uplink transmission exceeds the maximum power threshold for the UE 115. In response to the determination, the UE 115 may discard at least a part of the first uplink transmission of the plurality of uplink transmissions to specify that the transmit power is less than or equal to the maximum power threshold, and use one or more of the CCs The remaining uplink transmissions of the plurality of uplink transmissions are sent during the time slot. Additionally or alternatively, the UE 115 may scale the transmit power of one or more of the CCs for at least a part of the time slot so that the UE transmit power is less than or equal to the maximum power threshold. In some cases, the scaling of the transmission power may be performed for the uplink grant received from the base station 105 before the predetermined time before the time slot. In some cases, scaling may be performed for all overlapping uplink transmissions sent in a period when the uplink power of the UE 115 will exceed the maximum power threshold. In some cases, uplink transmissions can be prioritized, and transmissions can be scaled or dropped based on the priority level of the transmissions.

FIG. 2 illustrates an example of a part of a wireless communication system 200 supporting a technology for power control using carrier aggregation in wireless communication according to various aspects of the content of the present case. The wireless communication system 200 may include a base station 105-a and a UE 115-a, which may be an example of the base station 105 and the UE 115 described with reference to FIG. 1. In some examples, the base station 105-a may communicate with one or more UEs 115 within the geographic coverage area 110-a. The wireless communication system 200 can implement the aspect of the wireless communication system 100. For example, the wireless communication system 200 can support carrier aggregation, and the base station 105-a can be on multiple component carriers 205 (including the first component carrier 205-a, the second component carrier 205-b to the nth component carrier 205-n) Communicate with UE 115-a on the resource. In some cases, for different component carriers 205, the duration of transmission, the start time of transmission, the end time of transmission, or a combination thereof may be different.

When multiple CCs 205 are used in carrier aggregation communication between UE 115-a and base station 105-a, in some cases, base station 105-a does not span the entire time slot or one or more of other TTIs. Scheduled transmission on CC 205 is beneficial. However, in such cases, the UE 115-a may not be able to change the power setting at the power amplifier (PA) in the transmit/receive chain during the transmission on the CC 205. Therefore, once the UE 115-a starts sending and sending on the CC 205, the PA setting remains unchanged until the next time slot or TTI boundary in order to maintain the phase continuity of the transmission and allow proper decoding of the transmission. Therefore, if the first transmission is in progress in this time slot and the second transmission is started during a certain symbol during the time slot, then under these circumstances, the transmission power of the first transmission remains unchanged, and the transmission of the second transmission The power is increased to the transmit power of the first transmission to determine the total transmit power of the UE 115-a. In addition, certain types of transmissions such as sounding reference signal (SRS) and physical random channel (PRACH) transmissions may not undergo an inverse fast Fourier transform (IFFT) at UE 115-a, and therefore may not allow such transmissions Frequency division multiplexing with other uplink channels.

In order to prepare and use multiple CCs 205 for transmission in a specific time slot, it may take a certain amount of time for the UE 115-a to calculate power settings for different transmissions. In some cases, certain time axis requirements can be provided for UE 115-a to perform such calculations for different duration transmissions on different CCs 205 during the time slot. Therefore, in some cases, it can be before the start of the time slot. The schedule information and power control commands for the time slot are provided to the UE 115-a at the predetermined time. These timeline requirements can also provide sufficient time for the UE 115-a to generate digital data for the associated transmission.

UE 115-a may also have certain transmitter architecture features that affect transmissions on multiple CCs 205. In some cases, the UE 115-a may have a single FFT/IFFT engine and a shared RF chain for transmission on multiple CCs 205. In these cases, assuming that the CC 205 has the same digital scheme (ie, the same pitch interval, symbol duration, etc.), the UE 115-a can transmit an in-band continuous carrier with a single TAG. In other cases, the UE 115-a may have multiple FFT/IFFT engines and RF chains, so it has the ability to transmit in-band non-contiguous carriers and inter-band carriers, and can support multiple TAGs.

FIG. 3 illustrates an example of wireless resources used for multiple component carriers 300 according to various aspects of the content of the present case, which supports a technology for power control using carrier aggregation in wireless communication. In some examples, the wireless resources for multiple component carriers 300 may be implemented in the wireless communication system 100 or 200.

As mentioned above, the UE (for example, the UE 115 of FIG. 1 or FIG. 2) and the base station (for example, the base station 105 of FIG. 1 or FIG. 2) can use multiple CCs in the CA mode, and one of the CCs may be Transmissions on multiple CCs may have different start times, different stop times, different durations, or combinations thereof in a specific time slot or other TTI. In the example of FIG. 3, the first CC 305 and the second CC 310 may be configured for transmission during the time slot 330. In this case, the first transmission 315 can start at the beginning of the time slot 330 on the first CC 305, and can stop at some point before the time slot 330 ends. In this example, after the first transmission 315 ends, the second transmission 320 may start on the first CC 305 and may end when the time slot 330 ends. The third transmission 325 may start at the beginning of the time slot 330 on the second CC 310, and may end before the time slot 330 ends. In this example, the UE's transmit power will be the transmit power used for the first transmission 315 and third transmission 325 of the first part of the time slot 330, and only the second transmission 320 used for the last part of the time slot 330 Transmit power. Therefore, unless simultaneous transmissions completely overlap each other (that is, have the same start time and duration), power changes may occur in the middle of the transmission.

In some cases, the UE may not be able to support such a change in the total power within the transmission. According to some techniques provided in this article, the UE can provide an indication to the base station whether the UE supports overlapping transmissions in TAGs that do not start at the same time or have different durations. In some cases, when a connection supporting multiple CCs is established, the UE may provide such an indication in the capability report sent to the base station. In some cases, UE capabilities can be reported by frequency band, per frequency band combination, or a combination thereof. The base station can receive the UE capability report, and schedule the transmission for the UE based on the UE's capability to support overlapping transmissions with different start times, different stop times, different durations, or combinations thereof.

FIG. 4 illustrates an example of frequency hopping in one or more component carriers according to various aspects of the content of the present case, which supports the technology of power control using carrier aggregation in wireless communication. In some examples, frequency hopping in one or more component carriers 400 may be implemented in the wireless communication system 100 or 200.

In this example, the first CC 405 and the second CC 410 may be scheduled for transmission in the time slot 440. In this example, the first CC transmission 415 may use frequency hopping between different frequencies within the time slot 440, and the second CC transmission 420 may not have hopping. In this example, the DMRS transmission 425 may be provided in the first CC transmission 415 and the second CC transmission 420. When performing frequency hopping, in some cases, the UE may treat PUSCH/PUCCH transmission with in-slot frequency hopping as two transmissions. In other cases, the UE may treat PUSCH/PUCCH with frequency hopping in the time slot as two transmissions, unless all other simultaneous transmissions have DMRS symbols in the two time periods (for example, as shown in Figure 4). This may mean that the receiver will not assume that the power levels of the two segments are the same. In other cases, the UE may regard the PUSCH/PUCCH with frequency hopping as one transmission. In these cases, the UE may consider the impact on the frequency hopping transmit power (if any) before the transmission starts.

FIG. 5 illustrates examples of wireless resources and transmission of multiple component carriers 500 used for carrier aggregation in wireless communication according to various aspects of the content of the present case. In some examples, wireless resources and transmissions for multiple component carriers 500 can be implemented in the wireless communication system 100 or 200.

In this example, the UE may be configured with a first CC 505, a second CC 510, and a third CC 515, and a first transmission 530 on the first CC 505 may be scheduled (it will only be sent during a part of the time slot 550 ). In addition, the UE may also schedule the second transmission 535 and the third transmission 540 on the second CC 510. In addition, the UE may also schedule a fourth transmission 545 on the third CC 515. In this example, the second transmission 535, the third transmission 540, and the fourth transmission 545 may be a PUSCH transmission 520, and the first transmission 530 may be a PUCCH transmission 525. As indicated above, the transmit power of the UE may therefore change during the time slot 550. In this example, the first transmission 530 may have a first transmission power P1, the second transmission 535 may have a second transmission power P2, the third transmission 540 may have a third transmission power P3, and the fourth transmission 545 may have a fourth transmission power. Transmission power P4. Therefore, in this case, at the beginning of the time slot 550, there may be a first transmission power corresponding to P2 of the second transmission 535, which may be increased to the transmission power of P2+P4 when the fourth transmission 545 starts, and When the first transmission 530 starts, it increases to P1+P2+P4 again. During the gap between the second transmission 535 and the third transmission 540, the total transmission power may drop to only P1+P4, and once the third transmission starts, the total transmission power may increase to P1+P3+P4. Finally, after the first transmission 530 and the fourth transmission 545 are stopped, the total transmission power will drop to only P3 in this example. In some cases, the total transmit power may exceed the maximum transmit power (for example, P _cmax ), for example, if P1+P2+P4 or P1+P3+P4 is greater than P _cmax . In these cases, according to the various techniques provided in this article, all or some of the uplink transmissions can be scaled so as to provide the UE with the highest maximum power in _{compliance with P cmax during the time slot.} In other cases, all or part of the transmission can be discarded so that the remaining transmission does not exceed the maximum transmit power.

In some cases, the discarding or scaling of transmit power may be performed based at least in part on the priority order associated with the transmission. In some examples, different transmissions or channels may be assigned priority levels according to channel types (for example, PUCCH, PUSCH) and/or uplink control information (UCI) carried by different transmissions or channels. In some cases, the base station may signal the priority level for different transmissions or channels or the type of UCI to the UE, or it may be pre-configured. For example, PUCCH transmission 525 may be assigned a higher priority order than PUSCH transmission 520. In this case, if the total power of P2 + P1 + P4> P _cmax , the UE can reduce P2 and P4, and since P1 is the transmit power used for higher priority transmission, it remains unchanged. Similarly, if P4 + P3 + P1> P _cmax , the UE can shrink P3 and P4. The reduced power can be scaled sufficiently to specify the total transmit power _{at or below P cmax.} Furthermore, in some cases, the fourth transmission 545 may be assigned a lower priority order than the third transmission 540 (for example, based on supported services or data sent by the third transmission 540). In these cases, the transmit power P4 is scaled more than P3.

FIG. 6 illustrates an example of overlapping thresholds for transmission of multiple timing advance groups 600 according to various aspects of the content of the present case, which supports the technology of power control using carrier aggregation in wireless communication. In some examples, the overlap threshold for the transmission of multiple timing advance groups 600 may be implemented in the wireless communication system 100 or 200. As indicated above, in some cases, the UE may have the ability to transmit on multiple CCs in different TAGs, which may cause the time slot boundary to be misaligned for a specific time (for example, 30 µs), which depends on It is the distance between the UE and a specific base station.

Therefore, in the case where there are multiple TAGs for different CCs, some parts of the uplink transmission may overlap due to symbol misalignment. In the example of FIG. 6, the first CC 605 may be in a first TAG that uses a first timing advance (TA), and the second CC 610 may be in a second TAG that uses a second timing advance. In this case, the second CC 610 may have a first transmission 620 that ends in symbol i-1, and may have a second transmission 625 that starts in symbol i. The first CC 605 may have a transmission starting at symbol i, and due to the different TAs of the first TAG and the second TAG, the starting boundary of the symbol i is not aligned, which results in an overlap period 630 during which the first CC transmission 615 Overlaps with the first transmission 620 of the second CC 610.

When performing power control on symbol i, the UE can consider the second transmission 625 of the second CC 610 and the transmission 615 of the first CC 605, and can set the transmit power accordingly, so that during the symbol i, the UE transmit power does not exceed the maximum Transmit power threshold (P _cmax ). However, because the UE does not consider symbol i transmission when the first transmission 620 of the second CC 610 ends at symbol i1, the transmit power during the overlap period 630 may exceed P _cmax . In such cases, the increased collision transmission may be considered, and in some cases, the transmission 615 of the first CC 605 may be discarded. In some cases, if the overlap portion is less than the threshold Y, the UE can ignore the overlap period 630 for power control (due to the timing difference between different TAGs). In some cases, the UE may report the threshold Y to the base station, which may be used to explain the execution of network scheduling. In some cases, the value of the threshold Y may depend on UE capabilities, hardware present at the UE, or a combination thereof.

FIG. 7 illustrates examples of different types of transmission on different component carriers 700 according to various aspects of the content of the present case, which supports the technology of power control using carrier aggregation in wireless communication. In some examples, different types of transmissions on different component carriers 700 can be implemented in the wireless communication system 100 or 200.

In the example of FIG. 7, various different transmissions such as PUCCH transmission 715, PUSCH transmission 720, and SRS transmission 725 may have varying durations, which results in partially overlapping transmissions of the first CC 705 and the second CC 710. The transmit power setting of the symbol may require knowledge of all transmissions in the time slot (unless some transmissions are discarded) in order to provide overlapping transmissions _{that do not exceed P cmax.} For example, in case 1, the UE may send different PUCCH transmissions 715 on the first CC 705, while sending a single PUSCH transmission 720 on the second CC 710 that spans the entire time slot 730. In this case, the UE may consider PUCCH transmission 715 in conjunction with PUSCH transmission 720 when performing transmit power calculation for time slot 730.

In case 2, the UE may use the first CC 705 to send the PUSCH transmission 720 during the first part of the time slot 735, and use the first CC 705 to send the PUCCH transmission 715 during the last part of the time slot 735, while using spanning the entire time slot The second CC 710 of 735 sends a PUSCH transmission 720. In case 3, the UE may send PUSCH transmission 720 during the first part of the time slot 740 in the time slot 740, and send an SRS transmission 725 during the last part of the time slot 740 on the first CC 705, and may send the PUSCH transmission 725 during the last part of the time slot 740. The SRS transmission 725 is sent on the second CC 710 that overlaps the SRS transmission 725 of the first CC 705. In case 4, the UE may send PUSCH transmission 720 and PUCCH transmission 715 on the first CC 705 during the time slot 745, and may send SRS transmission 725 on the second CC 710 during the last part of the time slot 745. Although some examples of different overlapping transmissions are illustrated, many other examples of overlapping transmissions are also possible, and the techniques provided herein can be applied to various different instances of different overlapping transmissions. In addition, although only two CCs are shown in FIG. 7, the techniques provided herein can also be used for any number of configurations of CCs.

FIG. 8 illustrates an example of performing power control by discarding a transmission 800 using carrier aggregation in wireless communication according to various aspects of the content of the present case. In some examples, the power control via the discarded transmission 800 can be implemented in the state of the wireless communication system 100 or 200.

In this example, the UE may be configured with a first CC 805 and a second CC 810, and may be scheduled with a first transmission 825 on the first CC 805 (which is only sent during a part of the time slot 845). In addition, the UE may also schedule the second transmission 830 and the third transmission 835 on the second CC 810. In this example, the second transmission 830 and the third transmission 835 may be a PUSCH transmission 815, and the first transmission 825 may be a PUCCH transmission 820. As indicated above, the transmit power of the UE may therefore change during the time slot 845. In this example, the first transmission 825 may have a first transmission power P1, the second transmission 830 may have a second transmission power P2, and the third transmission may have a third transmission power P3. Therefore, in this case, there is a first transmission power corresponding to P2 of the second transmission 830 at the beginning of the time slot 845, which can be increased to the transmission power of P1+P2 at the beginning of the first transmission 825. It drops to only P1 when the second transmission 830 stops, and increases to P1+P3 when the third transmission 835 starts. In some cases, the total transmit power may exceed P _cmax , for example, if P1+P2 or P1+P3 is greater than P _cmax . In these cases, according to the various techniques provided in this article, if the total UE transmit power exceeds P _cmax , all or part of some transmissions can be discarded.

In some cases, different transmissions may be prioritized, and if the total transmit power of the UE exceeds the maximum transmit power threshold (for example, Pcmax), lower priority transmissions may be discarded. In some cases, the total transmit power can be determined symbol by symbol in a time slot, and no additional time axis requirements may be required. In some cases, the UE may only discard part of the transmission. In the example of FIG. 8, if P2 + P1> P _cmax , the UE may discard the portion 840 of the second transmission 830 that overlaps the first transmission 825. Similarly, if P3 + P1> P _cmax , the UE may discard the third transmission 835. In some cases, when the UE discards a transmitted symbol, it may discard all subsequent symbols of the transmission. Therefore, even if the first transmission 825 stops before the end of the time slot 845, once a determination has been made to discard the first symbol of the third transmission 835, the UE will not start sending the third transmission 835. In some cases, different iterative calculation methods can be used to identify whether overlapping transmissions exceed the maximum transmit power threshold, and to determine the transmissions to be discarded or sent during a time slot, for example, as discussed in more detail below with reference to FIGS. 10 and 11 .

FIG. 9 illustrates an example of the time axis of the resource license 900 according to various aspects of the content of the present case, which supports the technology for power control using carrier aggregation in wireless communication. In some examples, the timeline of the resource license 900 can be implemented in the wireless communication system 100 or 200.

In the example of FIG. 9, the first transmission 905, the second transmission 910, and the third transmission 915 for transmission in the time slot 920 may be allocated in the resource grant received by the UE from the base station. In this example, the first transmission 905 and the second transmission 910 may be a PUSCH transmission 930, and the third transmission may be a PUCCH transmission 935. As discussed above, where uplink transmissions can have different durations, start times, stop times, or combinations thereof, the UE can determine whether to use power scaling or discarding to maintain the UE's transmit power at or low The maximum transmit power threshold (for example, P _cmax ). In some cases, in order to perform such power scaling, the UE may need to receive a grant for uplink transmission of the time slot 920 at or before the predetermined time period 925 before the time slot 920 starts. In the example of FIG. 9, the predetermined time period 925 may have a duration of X symbols before the time slot 920 starts.

In the example of FIG. 9, the UE may receive the permission for the resource configuration of the second transmission 910 and the third transmission 915 before the predetermined time period 925. However, the permission for the first transmission 905 may be received after the start of the predetermined time period 925. In this case, the UE may not be able to perform power scaling on the first transmission 905, and adding the first transmission 905 to the already scheduled second transmission 910 and third transmission 915 will exceed the maximum transmit power threshold. The first transmission 905 can be discarded. In the case where the increased transmission power of the second transmission 910 and the third transmission 915 exceeds the maximum transmission power threshold, the UE may perform power scaling to adjust the transmission power of one or both of the second transmission 910 and the third transmission 915 Perform scaling (for example, scaling can be applied to lower priority transmissions).

In some cases, the UE may perform power scaling for transmissions by adding transmissions to the time slot 920 one by one based on the priority order, where the highest priority transmission is added first. In some cases, transmissions with a higher time axis are first allocated based on the priority level, so the ongoing transmissions started in the previous time slot or symbol can be continued in a higher priority order than the newly added transmission. In some cases, based on the transmission type/UCI content, the transmissions with the same time axis based on the priority order may be further divided into some priority levels. For example, from highest to lowest, priority can be provided to PRACH transmission, PUCCH/PUSCH transmission with UCI, PUSCH transmission, and SRS transmission. In other examples, from highest to lowest, transmission to PRACH, PUCCH transmission including HARQ ACK/SR or PUSCH including HACK/ACK UCI, PUCCH transmission not including HARQ ACK/SR, and PUCCH transmission not including HARQ ACK UCI PUSCH, PUSCH transmission and SRS transmission provide priority.

When scaling transmissions according to this order of priority, each remaining transmission is scaled to fit the available remaining power. The remaining power available is a function of the symbol index, but all symbols of a transmission have the same power after scaling. If there are multiple transmissions with the same priority order and different transmission durations, the UE may select (for example, randomly) one of the transmissions in advance for power scaling or discarding. In some cases, the UE may signal a predetermined time period 925 to the base station. In other cases, the base station may signal the predetermined time period 925 to the UE in order to have consistency across multiple UEs for scheduling purposes of the network. In other cases, the predetermined time period 925 may be a pre-configured value.

FIG. 10 illustrates an example of a method 1000 supporting a technique for power control using carrier aggregation in wireless communication according to various aspects of the content of the present case. In some examples, the method 1000 may be implemented in the state of the wireless communication system 100 or 200. As mentioned above, in some cases, discarding rules may be implemented at the UE according to the channel type (for example, PUCCH, PUSCH) and/or the type of uplink control information (UCI) carried by the transmission (or channel) (for example, HARQ feedback information, SR information, etc. may have a higher priority order) to assign a priority order to them. If the total transmission power of overlapping transmission exceeds the maximum transmission power threshold, the lower priority transmission can be discarded.

In this example, at 1005, the UE can recognize the UE capabilities for transmission on different CCs. For example, the capabilities may include: whether the UE can send overlapping transmissions on different CCs with different start times, different stop times, different durations, or combinations thereof. The capability may also include: whether the UE can support inter-band CC, in-band discontinuous CC, or in-band continuous CC. In some cases, the UE's capabilities may be pre-configured at the UE. In other cases, the UE's capabilities may depend on the conditions at the UE, for example, thermal conditions, the battery level or power saving mode at the UE, which may limit the number of transmit/receive chains that can be activated/processed at a specific time , Or other conditions at the UE.

At 1010, the UE can recognize the overlap threshold for the TAG. As mentioned above, in some cases, the UE may support multiple different TAGs on different CCs, and the overlap threshold may be the amount of time that the UE can transmit at a power exceeding the maximum transmit power threshold. In some cases, the value of the overlap threshold may be pre-configured at the UE or determined based on the situation at the UE.

At 1015, the UE may signal its capabilities and overlap threshold to the base station. For example, the signal delivery can be sent via radio resource control (RRC) signal delivery. In some cases, when the UE and the base station establish a connection supporting multiple CCs, the signal transmission can be provided as part of the connection establishment procedure. In some cases, the UE may determine that these capabilities or conditions have changed (which results in different UE capabilities or overlap thresholds), and in some cases, may indicate such changes to the base station after signaling the initial capabilities and overlap thresholds. Change.

At 1020, the UE may receive a license for multiple transmissions on two or more CCs. In some cases, the base station may schedule transmissions at the UE based on UE capabilities and overlap thresholds, and provide the UE with these permissions via Downlink Control Information (DCI) sent to the UE.

At 1025, the UE can recognize the priority level for multiple transmissions. As mentioned above, priority can be assigned to different transmissions or channels according to channel types (for example, PUCCH, PUSCH) and/or types of uplink control information (UCI) carried by different transmissions or channels. In some cases, the base station may signal the priority level or UCI type for different transmissions or channels to the UE, or it may be pre-configured. For example, from the highest priority to the lowest priority, the priority order can be: PRACH for the main cell (PCell) CC, PUCCH/PUSCH with ACK/NACK and/or SR, PUCCH/PUSCH with other UCI, PUSCH without UCI and SRS/PRACH with CC of helper cells (SCell). In some cases, within the same priority order, PCell has priority over SCell. Many other priority ordering examples can be used in various situations, and the above exemplary priority ordering is provided for illustration and discussion purposes only.

At 1030, the UE may determine the transmit power used for each CC transmission. This determination can be made based on the established power control technology, based on the power control information provided to the UE as part of the license and the available power at the UE.

At 1035, the UE may determine the total transmit power for the first symbol (symbol i) of the time slot. The UE may determine the total transmit power as the sum of the transmit power of each CC that has transmission scheduled for the symbol.

At 1040, the UE may determine whether the total transmit power of the symbol exceeds the maximum transmit power threshold (P _cmax ). This determination can be made based on _{a comparison between the calculated total transmit power and the value of P cmax} (for example, 23 dBm).

If the total transmit power of the symbol does not exceed P _cmax , then at 1045, the UE may send each transmission of the symbol. In such cases, overlapping transmissions of symbols have a total power less than the maximum transmit power threshold, and therefore no transmissions need to be discarded.

At 1050, the UE may increment the symbols in the time slot, and may perform operations starting from 1035. If the symbol is the last symbol of the time slot, the UE can stop and can perform operations for subsequent time slots.

If the total transmit power of the symbol does exceed P _cmax , at 1055, the UE can calculate the power gap. The power gap can be calculated as the difference between the total power of the calculated symbol and P _cmax.

At 1060, the UE can recognize one or more of the lowest priority transmissions for the symbol schedule. As mentioned above, different transmissions or channels can be assigned priority levels according to channel types (for example, PUCCH, PUSCH) and/or types of uplink control information (UCI) carried by different channels. Based on the assigned priority level, the UE can determine which of the one or more transmissions of the one or more CCs has the lowest priority.

At 1065, the UE can determine whether any of the identified lowest priority transmissions start at the current symbol. In some cases, ongoing transmissions may have a higher priority order than transmissions starting at that particular symbol, and identifying which transmissions start at the current symbol may allow this sort of priority ordering.

If no transmission starts in the current symbol, then at 1070, the UE can select all transmissions with the identified priority order. If one or more of these transmissions do start at the current symbol, then at 1075, the UE can select their transmissions starting with the current symbol.

At 1080, the UE can determine whether any of the selected transmissions has a transmit power greater than or equal to the calculated power gap. For example, the UE can make this determination by comparing the transmit power of each selected transmission with the power gap.

If one or more of the selected transmissions does have a transmit power greater than or equal to the calculated power gap, then at 1085, the UE may discard the transmission. If two or more of the selected transmissions meet the criterion, the UE can randomly select one of the transmissions to discard. Because the transmit power of the discarded transmission is greater than or equal to the calculated power gap, the remaining transmissions of the symbol will have _{a total transmit power equal to or lower than P cmax} , and therefore each of them can be transmitted.

At 1090, the UE may send each of the remaining transmissions of the current symbol. One or more CCs can be used to send these transmissions according to the scheduled transmission permission of the remaining transmissions. Subsequently, the UE may start to perform operations at 1050.

If one or more of the selected transmissions does not have a transmit power greater than or equal to the calculated power gap, then at 1095, the UE may discard the transmission with the highest transmit power. If two or more of the selected transmissions have the same transmit power, the UE can randomly select one of the transmissions to discard. This action will reduce the total transmit power of the symbol, but because the transmit power of the discarded transmission is less than the power gap, the total transmit power of the symbol will still exceed P _cmax , and the UE can perform operations starting from 1060 to select whether it should be discarded One or more other transmissions.

Using this technique, the UE can iteratively discard transmissions until the symbol power threshold is met. In some cases, for certain priority orders such as transmissions carrying HARQ-ACK/SR, the UE may perform scaling instead of discarding at the first symbol of the transmission. Unless discarded, the scaled power of the entire transmission remains unchanged.

In some cases, as mentioned above, the UE may not be able to perform partially overlapping transmissions within the TAG. In such cases, all overlapping transmissions that start and end simultaneously within the TAG can be attached together as an accompanying transmission, and the priority of the accompanying transmission can be set to the highest of any transmission in the accompanying transmission. Priority. In these cases, the power allocation is performed in two steps. First, the UE can ensure that the transmit power of each accompanying transmission does not exceed P _cmax and the remaining power at the beginning of the accompanying transmission (as discussed below), and Second, the UE can perform power allocation between the accompanying transmissions in the manner described for each transmission. Since all transmissions in the companion start and end at the same time, power allocation is performed for only one symbol.

FIG. 11 illustrates an example of another method 1100 that supports a technique for power control using carrier aggregation in wireless communication according to various aspects of the content of the present case. In some examples, another method 1100 can be implemented in the wireless communication system 100 or 200. As indicated above, in some cases, discarding rules can be implemented at the UE, which depends on the channel type (for example, PUCCH, PUSCH) and/or the type of uplink control information (UCI) carried by the transmission (or channel) To assign priority to it, if the total transmission power of overlapping transmission exceeds the maximum transmission power threshold, the transmission with a lower priority can be discarded.

In this example, at 1105, similar to what was discussed above with reference to FIG. 10, the UE can recognize the UE capabilities for transmission on different CCs. For example, the capabilities may include: whether the UE can send overlapping transmissions on different CCs with different start times, different stop times, different durations, or combinations thereof. The capability may also include: whether the UE can support inter-band CC, in-band discontinuous CC, or in-band continuous CC. In some cases, the UE's capabilities may be pre-configured at the UE. In other cases, the UE's capabilities may depend on the conditions at the UE, for example, thermal conditions, the battery level or power saving mode at the UE, which may limit the number of transmit/receive chains that can be activated/processed at a specific time , Or other conditions at the UE.

At 1110, the UE can recognize the overlap threshold for the TAG. As mentioned above, in some cases, the UE may support multiple different TAGs on different CCs, and the overlap threshold may be the amount of time that the UE can transmit at a power exceeding the maximum transmit power threshold. In some cases, the value of the overlap threshold may be pre-configured at the UE or determined based on the situation at the UE.

At 1115, the UE may signal its capabilities and overlap threshold to the base station. For example, the signal delivery can be sent via radio resource control (RRC) signal delivery. In some cases, when the UE and the base station establish a connection supporting multiple CCs, the signal transmission can be provided as part of the connection establishment procedure. In some cases, the UE may determine that these capabilities or conditions have changed (which results in different UE capabilities or overlap thresholds), and in some cases, may indicate such changes to the base station after signaling the initial capabilities and overlap thresholds. Change.

At 1120, the UE may receive a license for multiple transmissions on two or more CCs. In some cases, the base station may schedule transmissions at the UE based on UE capabilities and overlap thresholds, and provide the UE with these permissions via Downlink Control Information (DCI) sent to the UE.

At 1125, the UE can recognize the priority level for multiple transmissions. As mentioned above, priority can be assigned to different transmissions or channels according to channel types (for example, PUCCH, PUSCH) and/or types of uplink control information (UCI) carried by different transmissions or channels. In some cases, the base station may signal the priority level or UCI type for different transmissions or channels to the UE, or it may be pre-configured.

At 1130, the UE may determine the transmit power used for each CC transmission. This determination can be made based on the established power control technology, based on the power control information provided to the UE as part of the license and the available power at the UE.

At 1135, the UE may set the remaining power for the symbol to P _cmax . By setting the remaining power, the UE can add transmissions scheduled during the symbol period until the remaining power is no longer available, and any remaining transmissions that are not added can be discarded transmissions.

At 1140, the UE may calculate the total transmit power for each ongoing transmission. In some cases, as discussed above, ongoing transmissions that have started in the previous symbol may have priority relative to transmissions that have just started at the current symbol. In order to calculate the total transmit power for the ongoing transmission, the UE may sum the transmit power of each transmission from the previous symbol that continues to transmit at the current symbol. Subsequently, the UE may calculate the remaining power of the current symbol as P _cmax minus the total transmit power of each ongoing transmission.

At 1145, the UE can determine whether any transmission starts at the current symbol. If the determination at 1145 is performed after the iterative operation of the method, the UE can determine whether any remaining transmission starts at the current symbol. This determination can be made based on any transmission of any CC scheduled to start at a specific current symbol, which can be provided in the grant for uplink transmission.

If no additional transmission starts at the current symbol, then at 1150, the UE may send a transmission of this symbol. In these cases, the overlapping transmission of the symbol has a total power less than the maximum transmit power threshold and can be transmitted.

At 1155, the UE may increment the symbols in the time slot, and may perform operations starting from 1135. If the symbol is the last symbol of the time slot, the UE can stop and can perform operations for subsequent time slots.

If the transmission does start at the current symbol, the UE can identify the highest priority transmission at block 1160. In the case where more than one transmission has the same highest priority order, the UE may randomly select one such transmission.

At 1165, the UE may calculate the total increased power of the identified transmission. The total increased power can be calculated based on the identified transmission power of the transmission.

At 1170, the UE may determine whether the total increased power of the identified transmission is less than or equal to the calculated remaining power. This determination can be made by comparing the recognized transmit power of the uplink transmission with the calculated value of the remaining power.

If the total increased power of the identified transmission is less than or equal to the calculated remaining power, then at 1175, the UE may update the remaining power value and repeat the operation from 1145. The UE may update the remaining power by subtracting the total increased power from the value of the remaining power, thereby providing an updated value of the remaining power remaining after the identified transmission is increased.

If the total power increase of the identified transmission is greater than the calculated remaining power, then at 1180, the UE may scale the power of the identified transmission to be equal to the remaining power. For example, the UE may apply the scaling factor as the ratio between the remaining power and the total increased power, and apply the scaled power to the newly added transmission. Subsequently, the UE may perform operations starting from 1150. Alternatively, the UE may determine to discard one or more ongoing lower priority transmissions. In such cases, the ongoing transmission sharing the RF chain at the UE can be discarded altogether. Such discarding can provide additional remaining power that can be used by higher priority transmissions starting at symbol i.

In an example of using the method 1100, power control may be performed symbol by symbol, and at each symbol, the UE may determine whether to include transmission based on the power budget. In this example, an ongoing transmission is always included, which has the same power level as in the previous symbol, and a new transmission starting at the current symbol is added according to the order of priority. In order to use all available power, power scaling can be applied to newly included transmissions to fit the power budget.

FIG. 12 illustrates an example of a method 1200 supporting a technique for power control using carrier aggregation in wireless communication according to various aspects of the content of the present case. In some examples, the method 1200 may be implemented in the state of the wireless communication system 100 or 200. As mentioned above, in some cases, a discarding rule for selecting transmission and priority order for power scaling can be implemented at the UE, where according to the channel type (for example, PUCCH, PUSCH) and/or the uplink carried by the transmission (or channel) The type of link control information (UCI) (for example, HARQ feedback information, SR information, etc. may have a higher priority) to assign priority to it, regardless of whether the transmission is an ongoing transmission or a new transmission or a combination thereof. In some cases, if the total transmit power of overlapping transmissions exceeds the maximum transmit power threshold, lower priority transmissions may be discarded.

In this example, at 1205, the UE and the base station can perform connection establishment, and the UE can receive configuration information. In some cases, the configuration information may include information about two or more CCs that can be used for uplink transmission from the UE. In some cases, the UE can recognize the UE capabilities used for transmission on different CCs. For example, the capabilities may include: whether the UE can send overlapping transmissions on different CCs with different start times, different stop times, different durations, or combinations thereof. The capability may also include: whether the UE can support inter-band CC, in-band discontinuous CC, or in-band continuous CC. In some cases, the UE's capabilities may be pre-configured at the UE. In other cases, the UE's capabilities may depend on the conditions at the UE, for example, thermal conditions, the battery level or power saving mode at the UE, which may limit the number of transmit/receive chains that can be activated/processed at a specific time , Or other conditions at the UE. The base station may configure one or more of the CCs, and may perform transmission scheduling based at least in part on the capabilities of the UE.

At 1210, the UE may receive a grant for uplink transmission on multiple CCs. In some cases, the base station may schedule transmissions at the UE based on the UE's capabilities, and provide the UE with the permission via Downlink Control Information (DCI) sent to the UE.

At 1215, the UE can determine whether the time before the time slot has been reached, so that the UE can perform power scaling for uplink transmission. The UE may make this determination based on the time axis configuration at the UE, for example, as discussed above with reference to FIG. 9. If the time before the time slot is not reached, the operation of 1210 can be continued.

If the time before the time slot has been reached, at 1220, the UE can determine whether the total transmit power of the time slot exceeds the maximum transmit power threshold (P _cmax ). In some cases, the UE may aggregate the transmit power used for overlapping transmissions indicated in the received uplink grant to calculate the total transmit power of the time slot, and may compare the total transmit power with the maximum transmit power threshold. Compare.

If the total transmit power is greater than the maximum transmit power threshold, at 1225, the UE may scale the transmit power of one or more of the uplink transmissions. In some cases, the UE can scale the transmit power based on the priority order of uplink transmissions, with higher priority uplink transmissions having less or no power scaling, and lower priority uplink transmissions having more power. Multiple power scaling, such as discussed above with reference to FIG. 9.

After power scaling, or if it is determined at 1220 that the total transmit power is not greater than the maximum transmit power threshold, then at 1230, the UE can determine whether any additional licenses have been received. In some cases, the base station may provide uplink permission after the time identified at 1215. In such cases, the UE may not be able to use the uplink transmission in the power scaling calculation. If no additional permission is received, the UE may send an uplink transmission on the CC, as indicated at 1235.

If another license is received, at 1240, the UE may determine whether the total transmission power including the transmission power of the additional license is greater than the maximum transmission power threshold. In some cases, the UE may increase the transmit power associated with the additional license to the total transmit power or scaled transmit power, and compare the updated total transmit power with the maximum transmit power threshold.

If it is determined at 1240 that the total transmission power including the transmission power of the additional license is greater than the maximum transmission power threshold, then at 1245, the UE may discard the additional license.

If it is determined at 1240 that the total transmission power including the transmission power of the additional license is not greater than the maximum transmission power threshold, or if no additional license is received at 1230, the UE may send an uplink transmission on the CC, as in As indicated at 1235. The uplink transmissions may be sent using the uplink resources of the CC as indicated in the uplink grant, and such uplink transmissions may use transmit power scaled according to techniques such as those discussed herein.

FIG. 13 illustrates a block diagram 1300 of a wireless device 1305 supporting a technology for power control using carrier aggregation in wireless communication according to the aspect of the content of the present case. The wireless device 1305 may be an example of some aspects of user equipment (UE) 115 as described herein. The wireless device 1305 may include a receiver 1310, a UE communication manager 1315, and a transmitter 1320. In addition, the wireless device 1305 may also include a processor. Each of these components can communicate with each other (for example, via one or more busbars).

The receiver 1310 can receive such as packets, user data, or control associated with various information channels (for example, control channels, data channels, and information related to the power control technology used in wireless communication using carrier aggregation, etc.) Information such as information. Information can be sent to other parts of the device. The receiver 1310 may be an example of some aspects of the transceiver 1635 described with reference to FIG. 16. The receiver 1310 may use a single antenna or a group of antennas.

The UE communication manager 1315 may be an example of some aspects of the UE communication manager 1615 described with reference to FIG. 16.

The UE communication manager 1315 and/or at least some of its sub-components may be implemented in a manner of hardware, software executed by a processor, firmware, or any combination thereof. When implemented with software executed by a processor, general-purpose processors, digital signal processors (DSP), special application integrated circuits (ASICs), field programmable gate arrays (FPGAs) used to perform the functions described in the content of this case ) Or other programmable logic devices, individual gates or transistor logic, individual hardware components, or any combination thereof, can perform at least some of the functions of the UE communication manager 1315 and/or its various sub-components. At least some of the UE communication manager 1315 and/or its various sub-components may be physically distributed in multiple locations, including part of being distributed to implement functions at different physical locations by one or more physical devices. In some instances, at least some of the UE communication manager 1315 and/or its various sub-components may be separate and different components according to various aspects of the content of the present case. In other examples, according to various aspects of the content of this case, at least some of the UE communication manager 1315 and/or its various subcomponents can be combined with one or more other hardware components, where the hardware components include But not limited to: I/O components, transceivers, network servers, another computing device, one or more other components described in the content of this case, or a combination thereof.

In some cases, the UE communication manager 1315 may establish a connection with the base station. The connection supports two or more CCs in the TAG. The identification at the UE is used to support different start times on different CCs or The transmission capacity of the duration, and send an indication of the capacity to the base station.

Additionally or alternatively, the UE communication manager 1315 may additionally or alternatively establish a connection with the base station. The connection supports two or more CCs in different TAGs, and the UE can identify and exempt power control restrictions. The overlap threshold corresponding to the amount of time, where the new transmission on the first CC of the first TAG can overlap the last part of the existing transmission on the second CC of the second TAG, and an indication of the overlap threshold is sent to the base station.

Additionally or alternatively, the UE communication manager 1315 may establish a connection with the base station, and the connection supports two or more CCs. During a time slot, the two or more CCs receive a set of uplink signals on the two or more CCs. A set of uplink resource grants for link transmission, determining that the transmit power used to send the set of uplink transmissions exceeds the maximum power threshold for the UE during at least a part of the time slot, and discarding the set of uplink transmissions At least a part of the first uplink transmission of the first uplink transmission, wherein the final transmit power is less than or equal to the maximum power threshold, and one or more CCs in the CC are used to send the remainder of the group of uplink transmissions during the time slot Uplink transmission.

Additionally or alternatively, the UE communication manager 1315 may establish a connection with the base station, and the connection supports two or more CCs. During a time slot, the two or more CCs receive a set of uplink signals on the two or more CCs. A set of uplink resource grants for link transmission, where the set of grants is received at least a predetermined time before the start of the time slot, and it is determined that the transmit power used to transmit the set of uplink transmissions exceeds at least a portion of the time slot The maximum power threshold used for the UE during the period, the transmit power of at least a subset of the group of uplink transmissions is scaled to specify a transmit power less than or equal to the maximum power threshold, and the two or more CCs are used in The group of uplink transmissions is sent during this time slot.

Additionally or alternatively, the UE communication manager 1315 may establish a connection with the base station, which connection supports two or more component carriers (CC), and receive on the two or more CCs during a time slot. A set of uplink resource grants for a set of uplink transmissions, where the set of grants is received at least a predetermined time before the start of the time slot, and the first uplink transmission in the set of uplink transmissions is identified Having a first priority order, the first priority order is higher than the at least second priority order of the second uplink transmission in the group of uplink transmissions overlapping with the first uplink transmission, and the first priority order is determined The first transmit power of the uplink transmission is scaled to the second transmit power of the second uplink transmission so that the total transmit power of the UE is less than or equal to the maximum power threshold, and the two or more CCs are used. The set of uplink transmissions is sent during the time slot.

The transmitter 1320 can transmit signals generated by other components of the device. In some examples, the transmitter 1320 and the receiver 1310 may be collocated in the transceiver module. For example, the transmitter 1320 may be an example of some aspects of the transceiver 1635 described with reference to FIG. 16. The transmitter 1320 may use a single antenna, or may also use a group of antennas.

FIG. 14 illustrates a block diagram 1400 of a wireless device 1405 supporting a technology for power control using carrier aggregation in wireless communication according to the aspect of the content of the present case. The wireless device 1405 may be an example of some aspects of the wireless device 1305 or the UE 115 as described with reference to FIG. 13. The wireless device 1405 may include a receiver 1410, a UE communication manager 1415, and a transmitter 1420. In addition, the wireless device 1405 may also include a processor. Each of these components can communicate with each other (for example, via one or more busbars).

The receiver 1410 can receive such as packets, user data, or control associated with various information channels (for example, control channels, data channels, and information related to the power control technology used in wireless communication using carrier aggregation, etc.) Information such as information. Information can be sent to other parts of the device. The receiver 1410 may be an example of some aspects of the transceiver 1635 described with reference to FIG. 16. The receiver 1410 may use a single antenna or a group of antennas.

The UE communication manager 1415 may be an example of some aspects of the UE communication manager 1615 described with reference to FIG. 16. The UE communication manager 1415 may also include a connection establishment component 1425, a CC capability component 1430, a timing advance manager 1435, an uplink transmission manager 1440, and a transmission power control manager 1445.

The connection establishment component 1425 can establish a connection with the base station, and the connection supports two or more CCs in the TAG. In some cases, the connection establishment component 1425 can establish a connection with the base station, and the connection supports two or more CCs in different TAGs.

The CC capability component 1430 can recognize the capability for supporting transmissions with different start times or durations on different CCs, and send an indication of the capability to the base station. In some cases, the identification includes identifying the ability to support transmissions with different start times or durations for each of a set of different frequency bands or combinations of different frequency bands. In some cases, based on the number of RF chains available for transmission at the UE, the ability to support different start times or durations for each of the set of different frequency bands or combinations of different frequency bands is determined. In some cases, the set of different frequency bands or a combination of different frequency bands includes the in-band continuous carrier frequency of each RF chain at the UE. In some cases, the set of different frequency bands or a combination of different frequency bands includes in-band non-contiguous carrier frequencies or inter-band carrier frequencies for multiple RF chains at the UE.

The timing advance manager 1435 can identify the overlap threshold corresponding to the amount of time that the power control restriction is exempted, where the new transmission on the first CC of the first TAG can overlap with the last part of the existing transmission on the second CC of the second TAG , Send an indication of the overlap threshold to the base station, and determine whether the timing difference between the first CC and the second CC exceeds the overlap threshold. In some cases, the overlap threshold is applied to the beginning or end of transmission on one or more of the CCs. In some cases, if the timing difference exceeds the overlap threshold, one or more transmissions of one or more CCs can be discarded according to the techniques provided herein.

The uplink transmission manager 1440 may receive uplink resource grants for uplink transmissions on the first CC and the second CC. In some cases, the uplink transmission manager 1440 may receive a set of uplink resource grants for a set of uplink transmissions on the two or more CCs during a time slot. In some cases, the uplink transmission manager 1440 may use one or more of the CCs to send the uplink of the set of uplink transmissions during the time slot based on the transmission drop technique as discussed herein. Road transmission. In some cases, the uplink transmission manager 1440 can identify a first subset and a second subset of overlapping uplink transmission sets, the first subset having a transmission start time before the first symbol, and the second The subset starts with the first symbol, and in some cases, higher priority is given to the uplink transmissions.

In some cases, the uplink transmission manager 1440 may receive a set of uplink resource grants for a set of uplink transmissions on the two or more CCs during a time slot, where Receive the set of permissions at least a predetermined time before the start of. In some cases, the uplink transmission manager 1440 may receive an additional grant for another uplink transmission after the predetermined time and before the beginning of the time slot, and respond to determining the additional uplink transmission Without increasing the total transmit power of the UE above the maximum power threshold, this additional uplink transmission is sent. In some cases, the time gap between the last control information transmission and the beginning of the time slot is based on the uplink information sent using one or more of the set of uplink transmissions. In some cases, the first CC of the two or more CCs has a different symbol duration compared to at least the second CC of the two or more CCs, and is specific to the first CC and the second CC. To individually signal the final control information transmission including at least one of the set of permissions.

The transmit power control manager 1445 can determine the transmit power and transmission to be discarded according to the technology provided herein. In some cases, the transmit power control manager 1445 may determine that the transmit power used to send a set of uplink transmissions exceeds the maximum power threshold for the UE during at least a portion of the time slot, and discard the set of uplink transmissions At least the first uplink transmission in, where the final transmit power is less than or equal to the maximum power threshold. In some cases, the transmit power control manager 1445 may have a lower priority order based on the first uplink transmission than the priority order of other uplink transmissions in the two or more overlapping uplink transmissions , And discard the first uplink transmission.

In some cases, the transmit power control manager 1445 may determine that the first uplink transmission has an associated first uplink transmit power equal to or greater than the difference between: the maximum power threshold, the set of The total power of other uplink transmissions in the uplink transmission that overlap with the first uplink transmission, and the first uplink transmission is discarded based on this determination. In some cases, the transmit power control manager 1445 can identify the first symbol of the time slot, where in the first symbol of the time slot, overlapping uplink transmissions have a total transmit power that exceeds the maximum power threshold for the UE , Identify one or more uplink transmissions that are being transmitted in overlapping uplink transmissions, and set the ongoing transmissions to have a higher priority.

In some cases, the transmit power control manager 1445 may determine the first CC and the second CC with timing advance (TA) that cause the overlapping part of the transmission, and may modify the first CC or the second CC based on the timing difference of the TAs. Uplink transmission of one or both of the two CCs. In some cases, the modification includes one of the following: discarding the first CC transmission ending at the time slot boundary between consecutive time slots; discarding the second CC transmission starting at the time slot boundary; reducing the first CC transmission, the first CC transmission The transmit power of the second CC transmission or both; the last symbol transmitted by the first CC is discarded; or the first symbol transmitted by the second CC is discarded.

In some cases, the transmit power control manager 1445 may iteratively identify transmissions to be discarded from symbols with multiple overlapping transmissions (which exceed the maximum power threshold), and determine that the first uplink transmission is in an uplink that can be discarded. The subset of link transmissions has the smallest power, and the first uplink transmission can be discarded. In some cases, if two or more uplink transmissions that can be discarded are identified, the transmit power control manager 1445 may randomly select one of the uplink transmissions to discard. In some cases, when the uplink transmission set is formatted for transmission during the time slot, the determination and discarding are performed on a symbol-by-symbol basis.

In some cases, the transmit power control manager 1445 may scale the transmit power of one or more overlapping uplink transmissions in response to determining that the uplink transmission set exceeds the maximum power threshold. In some cases, the transmit power control manager 1445 may recognize that an additional uplink grant is received after the power control function, and in response to determining that the additional uplink transmission increases the total transmit power of the UE above the maximum power Threshold, and discard the additional uplink transmission.

In some cases, the transmit power control manager 1445 may determine the transmit power of the first uplink transmission and the second transmit power of the second uplink transmission, and determine that there is a surplus between the total transmit power of the UE and the maximum power threshold. Power is available, identify the third uplink transmission overlapping with the first uplink transmission and the second uplink transmission, which has a lower priority order than the first priority order and the second priority order, and will remain Power is allocated to the third uplink transmission. In some cases, the predetermined time for receiving the set of licenses is pre-configured or signaled between the base station and the UE. In some cases, the predetermined time for receiving the set of licenses is based on the UE's capabilities. In some cases, each symbol of the uplink transmission during the time slot has the same transmit power.

The transmitter 1420 can transmit signals generated by other components of the device. In some examples, the transmitter 1420 may be collocated with the receiver 1410 in the transceiver module. For example, the transmitter 1420 may be an example of some aspects of the transceiver 1635 described with reference to FIG. 16. The transmitter 1420 may use a single antenna, or may also use a group of antennas.

FIG. 15 illustrates a block diagram 1500 of the UE communication manager 1515 supporting the technology of power control using carrier aggregation in wireless communication according to the aspect of the content of the present case. The UE communication manager 1515 may be an example of some aspects of the UE communication manager 1315, the UE communication manager 1415, or the UE communication manager 1615 described with reference to FIG. 13, FIG. 14 and FIG. 16. The UE communication manager 1515 may include a connection establishment unit 1520, a CC capability unit 1525, a timing advance manager 1530, an uplink transmission manager 1535, a transmission power control manager 1540, a priority order identification unit 1545, a power scaling unit 1550, and transmission Attached part 1555. Each of these modules can communicate with each other directly or indirectly (for example, via one or more buses).

The connection establishment component 1520 can establish a connection with the base station, and the connection supports two or more CCs in the TAG. In some cases, the connection establishment component 1520 can establish a connection with the base station, and the connection supports two or more CCs in different TAGs.

The CC capability component 1525 can recognize the capability for supporting transmissions with different start times or durations on different CCs, and send an indication of the capability to the base station. In some cases, the identification includes identifying the ability to support transmissions with different start times or durations for each of a set of different frequency bands or combinations of different frequency bands. In some cases, based on the number of RF chains available for transmission at the UE, the ability to support different start times or durations for each of the set of different frequency bands or combinations of different frequency bands is determined. In some cases, the set of different frequency bands or a combination of different frequency bands includes the in-band continuous carrier frequency of each RF chain at the UE. In some cases, the set of different frequency bands or a combination of different frequency bands includes in-band non-contiguous carrier frequencies or inter-band carrier frequencies for multiple RF chains at the UE.

The timing advance manager 1530 can identify the overlap threshold corresponding to the amount of time that the power control restriction is exempted, where the new transmission on the first CC of the first TAG can overlap with the last part of the existing transmission on the second CC of the second TAG , Send an indication of the overlap threshold to the base station, and determine whether the timing difference between the first CC and the second CC exceeds the overlap threshold. In some cases, the overlap threshold is applied to the beginning or end of transmission on one or more of the CCs. In some cases, if the timing difference exceeds the overlap threshold, one or more transmissions of one or more CCs can be discarded according to the techniques provided herein.

The uplink transmission manager 1535 may receive uplink resource grants for uplink transmissions on the first CC and the second CC. In some cases, the uplink transmission manager 1535 may receive a set of uplink resource grants for a set of uplink transmissions on the two or more CCs during a time slot. In some cases, the uplink transmission manager 1535 may use one or more of the CCs to send the uplink of the set of uplink transmissions during the time slot based on the transmission drop technique as discussed herein. Road transmission. In some cases, the uplink transmission manager 1535 can identify a first subset and a second subset in the overlapping uplink transmission set, the first subset having a transmission start time before the first symbol, and the second The subset starts with the first symbol, and in some cases, higher priority is given to the uplink transmissions.

The transmission power control manager 1540 may determine the transmission power and transmission to be discarded according to the technology provided herein. In some cases, the transmit power control manager 1540 may determine that the transmit power used to send a set of uplink transmissions exceeds the maximum power threshold for the UE during at least a portion of the time slot, and discard the set of uplink transmissions At least the first uplink transmission in, where the final transmit power is less than or equal to the maximum power threshold. In some cases, the transmit power control manager 1540 may have a lower priority order based on the first uplink transmission than the priority order of other uplink transmissions in the two or more overlapping uplink transmissions. , And discard the first uplink transmission.

In some cases, the transmit power control manager 1540 may determine that the first uplink transmission has an associated first uplink transmit power equal to or greater than the difference between: the maximum power threshold, the set of The total power of other uplink transmissions in the uplink transmission that overlap with the first uplink transmission, and the first uplink transmission is discarded based on this determination. In some cases, the transmit power control manager 1540 can identify the first symbol of the time slot, where in the first symbol of the time slot, overlapping uplink transmissions have a total transmission that exceeds the maximum power threshold for the UE. Power, identify one or more uplink transmissions that are being transmitted in overlapping uplink transmissions, and set these ongoing transmissions to have a higher priority.

In some cases, the transmit power control manager 1540 may determine the first CC and the second CC with timing advance (TA) that cause the overlapping part of the transmission, and modify the first CC or the second CC based on the timing difference of the TAs. Uplink transmission of one or both of the CCs. In some cases, the modification includes one of the following: discarding the first CC transmission ending at the time slot boundary between consecutive time slots; discarding the second CC transmission starting at the time slot boundary; reducing the first CC transmission, the first CC transmission The transmit power of the second CC transmission or both; the last symbol transmitted by the first CC is discarded; or the first symbol transmitted by the second CC is discarded.

In some cases, the transmit power control manager 1540 may iteratively identify transmissions to be discarded from symbols with multiple overlapping transmissions (which exceed the maximum power threshold), and determine that the first uplink transmission is in an uplink that can be discarded. The subset of link transmissions has the smallest power, and the first uplink transmission can be discarded. In some cases, if two or more uplink transmissions that can be discarded are identified, the transmit power control manager 1540 may randomly select one of the uplink transmissions to discard. In some cases, when the uplink transmission set is formatted for transmission during the time slot, the determination and discarding are performed on a symbol-by-symbol basis.

In some cases, the transmit power control manager 1540 may scale the transmit power of one or more overlapping uplink transmissions in response to determining that the uplink transmission set exceeds the maximum power threshold. In some cases, the transmit power control manager 1540 may recognize that an additional uplink grant is received after the power control function, and in response to determining that the additional uplink transmission increases the total transmit power of the UE above the maximum power Threshold, and discard the additional uplink transmission.

In some cases, the transmit power control manager 1540 may determine the transmit power of the first uplink transmission and the second transmit power of the second uplink transmission, and determine that there is a surplus between the total transmit power of the UE and the maximum power threshold. Power is available, identify the third uplink transmission overlapping with the first uplink transmission and the second uplink transmission, which has a lower priority order than the first priority order and the second priority order, and will remain Power is allocated to the third uplink transmission. In some cases, the predetermined time for receiving the set of licenses is pre-configured or signaled between the base station and the UE. In some cases, the predetermined time for receiving the set of licenses is based on the UE's capabilities. In some cases, each symbol of the uplink transmission during the time slot has the same transmit power.

The priority order identification unit 1545 may select the first CC transmission or the second CC transmission to be discarded or transmitted with reduced power based on the priority order associated with each of the first CC transmission and the second CC transmission. In some cases, the selection may be based on one or more of the following: the priority of recognition associated with two or more overlapping uplink transmissions whose total power exceeds the maximum power threshold, or the one The accompanying uplink transmission of the identified first subset in the group of uplink transmissions with the first priority order (wherein is associated with at least the first subset of one or more other subsets in the group of uplink transmissions). Compared with the second priority, the first priority is lower).

The power scaling component 1550 may scale the transmit power of the at least one uplink transmission so that the transmit power of the UE is less than or equal to the maximum power threshold. In some cases, the transmit power of one or more uplink transmissions may be scaled to correspond to the difference between the maximum power threshold and the total transmit power.

In some cases, the power scaling component 1550 may scale the transmission power of at least a subset of the group of uplink transmissions, so as to specify that the transmission power is less than or equal to the maximum power threshold. In some cases, the scaling of the transmission power is performed during a period in which the start time is located after the last control information transmission associated with the time slot and the end time is located at the boundary of the beginning of the time slot. In some cases, the UE also further scales more than one uplink transmission with the same priority order, so that the total transmit power of the UE is less than or equal to the maximum power threshold.

The transmission attachment part 1555 can accompany one or more transmissions of different TAGs. In some cases, the set of uplink transmissions includes the uplink transmissions of the first subset of the first TAG and the uplink transmissions of the second subset of the second TAG, and the UE sets the uplink transmissions of the first subset The channel transmission is attached to the uplink transmission of the first satellite subset, and the uplink transmission of the second subset is attached to the uplink transmission of the second satellite subset. The power control technique (for example, the discarding of transmission) may be performed based on the accompanying subset of uplink transmission, and the priority order of the accompanying subset may be set to the highest priority order of transmission in the subset.

FIG. 16 illustrates a diagram of a system 1600 including a device 1605 according to the aspect of the content of this case, wherein the device 1605 supports a technology for power control using carrier aggregation in wireless communication. The device 1605 may be an example of the wireless device 1305, the wireless device 1405, or the UE 115 as described above, for example, with reference to FIG. 13 and FIG. 14, or include components of the wireless device 1305, the wireless device 1405, or the UE 115. The device 1605 may include components for two-way voice and data communication, including components for sending communications and components for receiving communications, including UE communication manager 1615, processor 1620, memory 1625, software 1630, and transceiver 1635, antenna 1640 and I/O controller 1645. These components can communicate electronically via one or more buses (for example, bus 1610). The device 1605 can communicate with one or more base stations 105 wirelessly.

The processor 1620 may include smart hardware devices (for example, general-purpose processors, DSPs, central processing units (CPUs), microcontrollers, ASICs, FPGAs, programmable logic devices, separate gates or transistor logic components, separate hardware Components or any combination thereof). In some cases, the processor 1620 may be configured to use a memory controller to operate the memory array. In other cases, the memory controller can be integrated into the processor 1620. The processor 1620 may be configured to execute computer readable instructions stored in the memory to perform various functions (for example, functions or tasks that support power control techniques using carrier aggregation in wireless communications).

The memory 1625 may include random access memory (RAM) and read-only memory (ROM). The memory 1625 can store computer-readable and computer-executable software 1630 including instructions, which when executed, cause the processor to perform various functions described herein. In some cases, specifically, the memory 1625 may include a basic input/output system (BIOS), which may control basic hardware or software operations (for example, interaction with peripheral components or devices).

The software 1630 may include code for implementing aspects of the content of this case, which includes code for supporting a technique for power control using carrier aggregation in wireless communications. The software 1630 can be stored in a non-transitory computer readable medium such as system memory or other memory. In some cases, the software 1630 may not be directly executed by the processor, but cause the computer (for example, when compiled and executed) to perform the functions described herein.

The transceiver 1635 may perform two-way communication via one or more antennas, wired links, or wireless links, as described above. For example, the transceiver 1635 can represent a wireless transceiver, and can communicate with another wireless transceiver in two-way. In addition, the transceiver 1635 may also include a modem to modulate the packet, provide the modulated packet to the antenna for transmission, and demodulate the packet received from the antenna.

In some cases, the wireless device may include a single antenna 1640. However, in some cases, the device may have more than one antenna 1640, which can simultaneously send or receive multiple wireless transmissions.

The I/O controller 1645 can manage input and output signals for the device 1605. The I/O controller 1645 can also manage peripheral devices that are not integrated into the device 1605. In some cases, the I/O controller 1645 may represent physical connections or ports for external peripheral devices. In some cases, the I/O controller 1645 can use operating systems such as iOS®, ANDROID®, MS-DOS®, MS-WINDOWS®, OS/2®, UNIX®, LINUX®, or another known Operating system. In other cases, the I/O controller 1645 can represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, the I/O controller 1645 may be implemented as part of the processor. In some cases, the user can interact with the device 1605 via the I/O controller 1645 or hardware components controlled by the I/O controller 1645.

FIG. 17 illustrates a block diagram 1700 of a wireless device 1705 supporting a technology for power control using carrier aggregation in wireless communication according to the aspect of the content of the present case. The wireless device 1705 may be an example of some aspects of the base station 105 as described herein. The wireless device 1705 may include a receiver 1710, a base station communication manager 1715, and a transmitter 1720. In addition, the wireless device 1705 may also include a processor. Each of these components can communicate with each other (for example, via one or more busbars).

The receiver 1710 can receive such as packets, user data, or control associated with various information channels (for example, control channels, data channels, and information related to the power control technology used in wireless communication using carrier aggregation, etc.) Information such as information. Information can be sent to other parts of the device. The receiver 1710 may be an example of some aspects of the transceiver 2035 described with reference to FIG. 20. The receiver 1710 may use a single antenna or a group of antennas.

The base station communication manager 1715 may be an example of some aspects of the base station communication manager 2015 described with reference to FIG. 20.

The base station communication manager 1715 and/or at least some of its sub-components can be implemented by hardware, software executed by a processor, firmware, or any combination thereof. When implemented by software executed by a processor, general-purpose processors, DSP, ASIC, FPGA or other programmable logic devices, individual gates or transistor logic, individual hardware components or Any combination thereof can perform at least some of the functions of the base station communication manager 1715 and/or its various sub-components. The base station communication manager 1715 and/or at least some of its various sub-components may be physically distributed in multiple locations, including a part that is distributed to implement functions at different physical locations via one or more physical devices. In some instances, at least some of the base station communication manager 1715 and/or its various sub-components may be separate and different components according to various aspects of the content of the present case. In other examples, according to various aspects of the content of the present case, at least some of the base station communication manager 1715 and/or its various sub-components can be combined with one or more other hardware components, wherein the hardware components Including but not limited to: I/O components, transceivers, network servers, another computing device, one or more other components described in this case, or a combination thereof.

The base station communication manager 1715 can establish a connection with a UE that has two or more CCs in a TAG or in different TAGs, and receives an indication from the UE whether the UE can support different start times or durations on different CCs. The indication of the time of transmission and the overlap threshold corresponding to the amount of time for which the power control restriction is exempted. Under the power control restriction, the new transmission on the first CC of the first TAG can be the same as that on the second CC of the second TAG. The last part of the existing transmission overlaps, and based on the indication and the overlap threshold, use the two or more CCs to schedule a set of uplink transmissions for the UE, and send to the UE including the set of uplink transmissions for the UE. A set of uplink grants for resource grants for channel transmission.

The transmitter 1720 can transmit signals generated by other components of the device. In some examples, the transmitter 1720 may be collocated with the receiver 1710 in the transceiver module. For example, the transmitter 1720 may be an example of some aspects of the transceiver 2035 described with reference to FIG. 20. The transmitter 1720 may use a single antenna, or may also use a group of antennas.

FIG. 18 illustrates a block diagram 1800 of a wireless device 1805 that supports a technology for power control using carrier aggregation in wireless communication according to the aspect of the content of the present case. The wireless device 1805 may be an example of some aspects of the wireless device 1705 or the base station 105 as described with reference to FIG. 17. The wireless device 1805 may include a receiver 1810, a base station communication manager 1815, and a transmitter 1820. In addition, the wireless device 1805 may also include a processor. Each of these components can communicate with each other (for example, via one or more busbars).

The receiver 1810 can receive such as packets, user data, or control associated with various information channels (for example, control channels, data channels, and information related to the power control technology used in wireless communication using carrier aggregation, etc.) Information such as information. Information can be sent to other parts of the device. The receiver 1810 may be an example of some aspects of the transceiver 2035 described with reference to FIG. 20. The receiver 1810 may use a single antenna or a group of antennas.

The base station communication manager 1815 may be an example of some aspects of the base station communication manager 2015 described with reference to FIG. 20. The base station communication manager 1815 may also include a connection establishment component 1825, a capability identification component 1830, a scheduler 1835, and a downlink control information (DCI) component 1840.

The connection establishment part 1825 may establish a connection with a UE having two or more CCs in a TAG or in different TAGs.

The capability identification unit 1830 may receive an indication from the UE indicating whether the UE can support transmissions with different start times or durations on different CCs, and an overlap threshold corresponding to the amount of time for which the power control restriction is exempted. Under control restrictions, the new transmission on the first CC of the first TAG can overlap with the last part of the existing transmission on the second CC of the second TAG.

The scheduler 1835 may use the two or more CCs to schedule a set of uplink transmissions for the UE based on the indication and the overlap threshold. The DCI component 1840 may send a set of uplink grants including resource grants for the set of uplink transmissions to the UE.

The transmitter 1820 can transmit signals generated by other components of the device. In some examples, the transmitter 1820 may be collocated with the receiver 1810 in the transceiver module. For example, the transmitter 1820 may be an example of some aspects of the transceiver 2035 described with reference to FIG. 20. The transmitter 1820 may use a single antenna, or may also use a group of antennas.

FIG. 19 illustrates a block diagram 1900 of the base station communication manager 1915 supporting the technology of power control using carrier aggregation in wireless communication according to the aspect of the content of the present case. The base station communication manager 1915 may be an example of some aspects of the base station communication manager 2015 described with reference to FIG. 17, FIG. 18, and FIG. 20. The base station communication manager 1915 may include a connection establishment component 1920, a capability identification component 1925, a scheduler 1930, a DCI component 1935, and a configuration manager 1940. Each of these modules can communicate with each other directly or indirectly (for example, via one or more buses).

The connection establishment part 1920 may establish a connection with a UE having two or more CCs in a TAG or in different TAGs.

The capability identification unit 1925 may receive an indication from the UE indicating whether the UE can support transmissions with different start times or durations on different CCs, and an overlap threshold corresponding to the amount of time for which power control restrictions are exempted. Under control restrictions, the new transmission on the first CC of the first TAG can overlap with the last part of the existing transmission on the second CC of the second TAG.

The scheduler 1930 may use the two or more CCs to schedule a set of uplink transmissions for the UE based on the indication and the overlap threshold. The DCI component 1935 may send a set of uplink grants including resource grants for the set of uplink transmissions to the UE.

The configuration manager 1940 may use one or more power control parameters to configure the UE based on the instruction, and the one or more power control parameters are provided for performing power control on uplink transmissions on the two or more CCs. Priority and sorting of power control.

FIG. 20 illustrates a diagram of a system 2000 including a device 2005 according to the aspect of the content of the present case, wherein the device 2005 supports a technology for power control using carrier aggregation in wireless communication. The device 2005 may be an example of the base station 105 as described above, for example with reference to FIG. 1, or include components of the base station 105. The device 2005 may include components for two-way voice and data communication, including components for sending communication and components for receiving communication, including base station communication manager 2015, processor 2020, memory 2025, software 2030, transceiver Machine 2035, antenna 2040, network communication manager 2045 and inter-station communication manager 2050. These components can communicate electronically via one or more busbars (for example, busbar 2010). The device 2005 can wirelessly communicate with one or more UEs 115.

The processor 2020 may include smart hardware devices (for example, general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, individual gates or transistor logic components, separate hardware components, or any combination thereof ). In some cases, the processor 2020 may be configured to use a memory controller to operate the memory array. In other cases, the memory controller can be integrated into the processor 2020. The processor 2020 may be configured to execute computer-readable instructions stored in the memory to perform various functions (for example, functions or tasks that support power control techniques using carrier aggregation in wireless communications).

The memory 2025 may include RAM and ROM. The memory 2025 can store computer-readable and computer-executable software 2030 including instructions, which when executed, cause the processor to perform various functions described herein. In some cases, specifically, the memory 2025 may contain BIOS, which may control basic hardware or software operations (for example, interaction with peripheral components or devices).

The software 2030 may include code for implementing aspects of the content of this case, which includes code for supporting the technology of power control using carrier aggregation in wireless communication. The software 2030 can be stored in a non-transitory computer readable medium such as system memory or other memory. In some cases, the software 2030 may not be directly executed by the processor, but cause the computer (for example, when compiled and executed) to perform the functions described herein.

The transceiver 2035 may perform two-way communication via one or more antennas, wired links, or wireless links, as described herein. For example, the transceiver 2035 can represent a wireless transceiver, which can perform two-way communication with another wireless transceiver. In addition, the transceiver 2035 may also include a modem to modulate the packet, provide the modulated packet to the antenna for transmission, and demodulate the packet received from the antenna.

In some cases, the wireless device may include a single antenna 2040. However, in some cases, the device may have more than one antenna 2040, and the antennas 2040 can simultaneously send or receive multiple wireless transmissions.

The network communication manager 2045 can manage the communication with the core network (for example, via one or more wired backhaul links). For example, the network communication manager 2045 can manage the transmission of data communication for client devices (eg, one or more UEs 115).

The inter-station communication manager 2050 may manage communication with other base stations 105, and may include a controller or scheduler for controlling communication with the UE 115 in coordination with other base stations 105. For example, the inter-station communication manager 2050 may coordinate transmission scheduling for the UE 115 to implement various interference mitigation technologies such as beamforming or joint transmission. In some examples, the inter-station communication manager 2050 may provide an X2 interface in the long-term evolution (LTE)/LTE-A wireless communication network technology to provide communication between the base stations 105.

FIG. 21 illustrates a flowchart of a method 2100 of a technique for power control using carrier aggregation in wireless communication according to the aspect of the content of the present case. The operations of the method 2100 may be implemented by the UE 115 or components thereof as described herein. For example, the operation of the method 2100 may be performed by the UE communication manager as described with reference to FIG. 13 to FIG. 16. In some instances, the UE 115 may execute a set of codes to control the functional elements of the device to perform the functions described below. Additionally or alternatively, the UE 115 may use special-purpose hardware to perform the functions described below.

At 2105, the UE 115 can establish a connection with the base station that supports two or more CCs in the TAG. The operation of 2105 can be performed according to the method described herein. In some instances, the state of operation of 2105 may be performed by the connection establishment component as described with reference to FIGS. 13 to 16. In some cases, the connection may be established according to the connection establishment technology utilized by the UE to request a connection with the base station (for example, via a random access request). In some cases, the UE may indicate during the connection establishment procedure that the UE is capable of supporting two or more CCs, and a connection supporting the two or more CCs may be established.

At 2110, the UE 115 can recognize the ability to support transmissions with different start times or durations on different CCs. The operation of 2110 can be performed according to the method described herein. In some instances, the state of operation of 2110 may be performed by the CC capability component as described with reference to FIGS. 13 to 16. In some cases, the ability to support transmissions with different start times or durations may be pre-configured at the UE and provided to the base station as part of the connection establishment procedure. In some cases, the UE may determine the ability to support transmissions with different start times or durations based on the situation at the UE.

At 2115, the UE 115 may send an indication of the capability to the base station. The operation of 2115 can be performed according to the method described herein. In some instances, the state of operation of 2115 may be performed by the CC capability component as described with reference to FIGS. 13 to 16. In some cases, this indication can be provided via RRC signaling as part of the connection establishment procedure.

FIG. 22 illustrates a flowchart of a method 2200 for a power control technique using carrier aggregation in wireless communication according to the aspect of the content of the present case. The operations of the method 2200 may be implemented by the UE 115 or components thereof as described herein. For example, the operation of the method 2200 may be performed by the UE communication manager as described with reference to FIGS. 13 to 16. In some instances, the UE 115 may execute a set of codes to control the functional elements of the device to perform the functions described below. Additionally or alternatively, the UE 115 may use special-purpose hardware to perform the functions described below.

At 2205, the UE 115 may establish a connection with the base station that supports two or more CCs in the TAG. The operation of 2205 can be performed according to the method described herein. In some instances, the state of operation of 2205 may be performed by the connection establishment component as described with reference to FIGS. 13 to 16. In some cases, the connection may be established according to the connection establishment technology utilized by the UE to request a connection with the base station (for example, via a random access request). In some cases, the UE may indicate during the connection establishment procedure that the UE is capable of supporting two or more CCs, and may establish a connection supporting the two or more CCs.

At 2210, the UE 115 can identify the overlap threshold corresponding to the amount of time that the power control restriction is exempted, where the new transmission on the first CC of the first TAG can be the same as the last part of the existing transmission on the second CC of the second TAG. overlapping. The operation of 2210 can be performed according to the method described herein. In some instances, the state of operation of 2210 may be executed by the timing advance manager as described with reference to FIGS. 13 to 16. In some cases, the overlap threshold may be pre-configured at the UE and provided to the base station as part of the connection establishment procedure. In some cases, the UE may determine the overlap threshold based on the situation at the UE, and signal the overlap threshold to the base station.

At 2215, the UE 115 may send an indication of the overlap threshold to the base station. The operation of 2215 can be performed according to the method described herein. In some instances, the state of operation of 2215 may be performed by the timing advance manager as described with reference to FIGS. 13 to 16. In some cases, this indication can be provided via RRC signaling as part of the connection establishment procedure.

At 2220, the UE 115 may receive an uplink resource grant for uplink transmission in consecutive time slots on the first CC and the second CC. The operation of 2220 can be performed according to the method described herein. In some instances, the aspect of operation of 2220 may be performed by the uplink transmission manager as described with reference to FIGS. 13 to 16. In some cases, the permission can be received from the base station in the DCI.

At 2225, the UE 115 may determine that the timing difference between the first CC and the second CC exceeds the overlap threshold. The operation of 2225 can be performed according to the method described herein. In some instances, the state of operation of 2225 may be executed by the timing advance manager as described with reference to FIGS. 13 to 16. In some cases, the UE may make this determination based on the current TA value for each CC, and a comparison of the timing difference between TAs and the overlap threshold.

At 2230, the UE 115 may select the first CC transmission or the second CC transmission to be discarded or transmitted with reduced power based at least in part on the priority order associated with each of the first CC transmission and the second CC transmission. Two CC transmission. The operation of 2230 can be performed according to the method described herein. In some instances, the state of operation of 2230 may be performed by the priority order identification component as described with reference to FIGS. 13 to 16. In some cases, the priority order of the first CC transmission and the second CC transmission can be determined according to the priority order configured for transmission, and the lower priority order transmission can be selected in order to have the higher priority order of transmission transmission.

At 2235, the UE 115 may modify the uplink transmission of one or both of the first CC or the second CC based at least in part on the timing difference. The operation of 2235 can be performed according to the method described herein. In some instances, the state of operation of 2235 may be performed by the transmit power control manager as described with reference to FIGS. 13 to 16. In some cases, the modification may include: discarding the first CC transmission that ends at the time slot boundary between consecutive time slots, discarding the second CC transmission that starts at the time slot boundary, reducing the first CC transmission, and the second CC transmission Or the transmit power of both, discard the last symbol transmitted by the first CC, or discard the first symbol transmitted by the second CC.

FIG. 23 illustrates a flowchart of a method 2300 for a power control technique using carrier aggregation in wireless communication according to the aspect of the content of the present case. The operations of the method 2300 may be implemented by the UE 115 or components thereof as described herein. For example, the operations of the method 2300 may be performed by the UE communication manager as described with reference to FIGS. 13 to 16. In some instances, the UE 115 may execute a set of codes to control the functional elements of the device to perform the functions described below. Additionally or alternatively, the UE 115 may use special-purpose hardware to perform the functions described below.

At 2305, the UE 115 can establish a connection with the base station that supports two or more CCs in the TAG. The operation of 2305 can be performed according to the method described herein. In some instances, the state of operation of 2305 may be performed by the connection establishment component as described with reference to FIGS. 13 to 16. In some cases, the connection may be established according to the connection establishment technology utilized by the UE to request a connection with the base station (for example, via a random access request). In some cases, the UE may indicate during the connection establishment procedure that the UE is capable of supporting two or more CCs, and may establish a connection supporting the two or more CCs.

At 2310, the UE 115 may receive a plurality of uplink resource grants for a plurality of uplink transmissions on the two or more CCs during a time slot. The operation of 2310 can be performed according to the method described herein. In some instances, the aspect of the operation of 2310 may be performed by the uplink transmission manager as described with reference to FIGS. 13 to 16. In some cases, the plurality of licenses are received from the base station in the DCI.

At 2315, the UE 115 may determine that the transmit power used to send the plurality of uplink transmissions exceeds the maximum power threshold for the UE during at least a portion of the time slot. The operation of 2315 can be performed according to the method described herein. In some instances, the aspect of the operation of 2315 may be performed by the transmit power control manager as described with reference to FIGS. 13 to 16. In some cases, the determination can be made by adding the transmit power of each overlapping transmission of the symbol to determine the total transmit power for that symbol, and comparing the total transmit power with a maximum power threshold.

At 2320, the UE 115 may discard at least the first uplink transmission of the plurality of uplink transmissions, where the final transmit power is less than or equal to the maximum power threshold. The operation of 2320 can be performed according to the method described herein. In some instances, the aspect of the operation of 2320 may be performed by the transmit power control manager as described with reference to FIGS. 13 to 16. In some cases, the UE may be based on the priority order associated with the first uplink transmission and the priority order of one or more other uplink transmissions (which may have a higher priority order than the first uplink transmission. Priority order) to discard the first uplink transmission.

At 2325, the UE 115 may use one or more of the CCs to send the remaining uplink transmissions of the plurality of uplink transmissions during the time slot. The operation of 2325 can be performed according to the method described herein. In some instances, the aspect of the operation of 2325 may be performed by the uplink transmission manager as described with reference to FIGS. 13 to 16. The remaining uplink transmission may have a total transmit power less than the maximum transmit power.

FIG. 24 illustrates a flowchart of a method 2400 for a power control technique using carrier aggregation in wireless communication according to the aspect of the content of the present case. The operations of method 2400 may be implemented by UE 115 or components thereof as described herein. For example, the operation of the method 2400 may be performed by the UE communication manager as described with reference to FIG. 13 to FIG. 16. In some instances, the UE 115 may execute a set of codes to control the functional elements of the device to perform the functions described below. Additionally or alternatively, the UE 115 may use special-purpose hardware to perform the functions described below.

At 2405, the UE 115 can establish a connection with the base station that supports two or more CCs. The operation of 2405 can be performed according to the method described herein. In some instances, the state of operation of 2405 may be performed by the connection establishment component as described with reference to FIGS. 13 to 16. In some cases, the connection may be established according to the connection establishment technology utilized by the UE to request a connection with the base station (for example, via a random access request). In some cases, the UE may indicate during the connection establishment procedure that the UE is capable of supporting two or more CCs, and may establish a connection supporting the two or more CCs.

At 2410, the UE 115 may receive a plurality of uplink resource grants for a plurality of uplink transmissions on the two or more CCs during a time slot, wherein the number of uplink resource grants for sending the group of uplink transmissions The transmit power exceeds the maximum power threshold for the UE during at least a part of the time slot. The operation of 2410 can be performed according to the method described herein. In some instances, the aspect of operation of 2410 may be performed by the uplink transmission manager as described with reference to FIGS. 13 to 16. In some cases, the plurality of grants are received at least a predetermined time before the start of the time slot, so that the UE can perform power control calculations based on the uplink transmission power provided by the grants for uplink transmission . In some cases, the plurality of licenses are received from the base station in the DCI.

At 2415, the UE 115 may scale the transmit power of at least a subset of the plurality of uplink transmissions to specify that the transmit power is less than or equal to the maximum power threshold. The operation of 2415 can be performed according to the method described herein. In some instances, the aspect of operation of 2415 may be performed by the power scaling component as described with reference to FIGS. 13 to 16. In some cases, the UE may scale the transmit power based on the priority order of uplink transmission. In some cases, higher priority transmissions may have less scaling or no power scaling, and lower priority transmissions may have greater power scaling compared to higher priority transmissions.

At 2420, the UE 115 may use one or more of the CCs to send the plurality of uplink transmissions during the time slot. The operation of 2420 can be performed according to the method described herein. In some instances, the aspect of operation of 2420 may be performed by the uplink transmission manager as described with reference to FIGS. 13 to 16. The uplink transmissions may have a total transmit power less than or equal to the maximum transmit power.

FIG. 25 illustrates a flowchart of a method 2500 for a technique of power control using carrier aggregation in wireless communication according to the aspect of the content of the present case. The operations of method 2500 may be implemented by UE 115 or components thereof as described herein. For example, the operations of the method 2500 may be performed by the UE communication manager as described with reference to FIGS. 13 to 16. In some instances, the UE 115 may execute a set of codes to control the functional elements of the device to perform the functions described below. Additionally or alternatively, the UE 115 may use special-purpose hardware to perform the functions described below.

At 2505, the UE 115 can establish a connection with the base station that supports two or more CCs. The operation of 2505 can be performed according to the method described herein. In some instances, the mode of operation of 2505 may be performed by the connection establishment component as described with reference to FIGS. 13 to 16. In some cases, the connection may be established according to the connection establishment technology utilized by the UE to request a connection with the base station (for example, via a random access request). In some cases, the UE may indicate during the connection establishment procedure that the UE is capable of supporting two or more CCs, and may establish a connection supporting the two or more CCs.

At 2510, the UE 115 may receive a plurality of uplink resource grants for a plurality of uplink transmissions on the two or more CCs during a time slot, where the first in the group of uplink transmissions The uplink transmission has a first order of priority, which is higher than at least a second order of priority of a second uplink transmission in the group of uplink transmissions that overlap with the first uplink transmission. The operation of 2510 can be performed according to the method described herein. In some instances, the aspect of operation of 2510 may be performed by the uplink transmission manager as described with reference to FIGS. 13 to 16. In some cases, the plurality of grants are received at least a predetermined time before the start of the time slot, so that the UE can perform power control calculations based on the uplink transmission power provided by the grants for uplink transmission . In some cases, the plurality of licenses are received from the base station in the DCI.

At 2515, the UE 115 may scale the second transmit power of the second uplink transmission so that the total transmit power of the UE is less than or equal to the maximum power threshold. The operation of 2515 can be performed according to the method described herein. In some instances, the aspect of operation of 2515 may be performed by the power scaling component as described with reference to FIGS. 13 to 16. In some cases, the second transmit power is scaled to a ratio of the second transmit power that provides the scaling plus the first transmit power at or below the maximum transmit power threshold.

At 2520, the UE 115 may use the two or more CCs to send the plurality of uplink transmissions during the time slot. The operation of 2520 can be performed according to the method described herein. In some instances, the aspect of operation of 2520 may be performed by the uplink transmission manager as described with reference to FIGS. 13 to 16. The uplink transmissions may have a total transmit power less than or equal to the maximum transmit power.

It should be noted that the method described above describes possible implementations, the operations and steps can be rearranged or modified, and other implementations are also possible. In addition, aspects from two or more of these methods can be combined.

The technology described in this article can be used in various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), and Orthogonal Frequency Division Multiple Access (FDMA). Industrial Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The CDMA system can implement radio technologies such as CDMA 2000, Universal Terrestrial Radio Access (UTRA), and so on. CDMA2000 covers IS-2000, IS-95 and IS-856 standards. The IS-2000 release version is usually called CDMA 2000 1X, 1X, and so on. IS-856 (TIA-856) is usually called CDMA 2000 1xEV-DO, High Speed Packet Data (HRPD), etc. UTRA includes wideband CDMA (WCDMA) and other variants of CDMA. The TDMA system can implement radio technologies such as the Global System for Mobile Communications (GSM).

OFDMA system can implement such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. Radio technology like that. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). LTE and LTE-A are new versions of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, NR and GSM are described in documents from an organization named "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein can be used for the systems and radio technologies mentioned above as well as other systems and radio technologies. Although the aspect of the LTE or NR system is described for the purpose of example, and the LTE or NR terminology is used in most of the description, the techniques described herein can also be applied outside of LTE or NR applications.

Macro cells usually cover a relatively large geographic area (for example, several kilometers in radius), which allows UE 115 that has a service subscription with a network provider to have unrestricted access. Compared with the macro cell, the small cell can be associated with the low-power base station 105, and the small cell can operate in the same or different (for example, authorized, unlicensed, etc.) frequency band as the macro cell. According to various examples, small cells may include pico cells, femto cells, and micro cells. For example, a pico cell can cover a relatively small geographic area, which allows UE 115 that has a service subscription with a network provider to have unrestricted access. In addition, a femto cell can also cover a small geographic area (for example, a household), and it can provide a UE 115 associated with the femto cell (for example, a UE 115 in a closed user group (CSG) for households). The user’s UE 115, etc.) provide restricted access. The eNB used for the macro cell may be referred to as a macro eNB. An eNB used for small cells may be referred to as small cell eNB, pico eNB, femto eNB or home eNB. The eNB can support one or more (for example, two, three, four, etc.) cells, and can also support the use of one or more component carriers for communication.

The wireless communication system 100 or some systems described herein may support synchronous or asynchronous operation. For synchronization operations, the base stations 105 may have similar frame timings, and transmissions from different base stations 105 are approximately aligned in time. For asynchronous operation, the base station 105 may have different frame timings, and transmissions from different base stations 105 are not aligned in time. The techniques described in this article can be used for synchronous operations as well as asynchronous operations.

The information and signals described in this article can be represented using any of a variety of different technologies and methods. For example, the data, instructions, commands, information, signals, bits, symbols, and chips mentioned throughout the above description can be represented by voltage, current, electromagnetic waves, magnetic fields or particles, light fields or particles, or any combination thereof .

General-purpose processor, digital signal processor (DSP), special application integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device (PLD), individual Gates or transistor logic, individual hardware components, or any combination thereof can be used to implement or execute various exemplary blocks and modules described in conjunction with the content disclosed herein. The general-purpose processor may be a microprocessor, or the processor may also be any general processor, controller, microcontroller, or state machine. The processor can also be implemented as a combination of computing devices (for example, a combination of a DSP and a microprocessor, several microprocessors, a combination of a microprocessor and a DSP core, or any other such structure).

The functions described herein can be implemented by hardware, software executed by a processor, firmware, or any combination thereof. When implemented by software executed by a processor, these functions can be stored on a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Other examples and implementations also fall within the scope of protection of the content of this case and the scope of the attached patent application. For example, due to the nature of software, the functions described above can be implemented using software executed by a processor, hardware, firmware, hardware connection, or any combination thereof. The features for implementing the function may be physically distributed in multiple locations, including a part of the function being distributed in different physical locations to implement the function.

Computer readable media include non-transitory computer storage media and communication media. Communication media includes any media that facilitates the transfer of computer programs from one place to another. Non-transitory storage media can be any available media that can be accessed by general-purpose or special-purpose computers. For example, without limitation, non-transitory computer-readable media can include random access memory (RAM), read-only memory (ROM), and electronically erasable programmable read-only memory (EEPROM). ), flash memory, compact disc (CD) ROM or other optical disk memory, magnetic disk memory or other magnetic storage devices, or can be used to carry or store desired code components in the form of commands or data structures and can Any other non-transitory media accessed by general-purpose or special-purpose computers, or general-purpose or special-purpose processors. In addition, any connection can be appropriately referred to as a computer-readable medium. For example, if the software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwave, The coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of the media. As used in this article, floppy disks and optical discs include CDs, laser discs, optical discs, digital versatile discs (DVD), floppy discs and Blu-ray discs. Disks usually reproduce data magnetically, while optical discs use lasers to optical To reproduce the material. The above combination should also be included in the protection scope of computer readable media.

As used herein (which includes the scope of the patent application), as used in the list item "or" (for example, ending with phrases such as "at least one of" or "one or more of" The list item of) indicates an inclusive list, so that, for example, at least one of lists A, B, or C means: A or B or C or AB or AC or BC or ABC (ie, A and B and C). In addition, as used herein, the phrase "based on" should not be interpreted as referring to a closed set of conditions. For example, the exemplary steps described as "based on condition A" can be based on condition A and condition B without departing from the scope of protection of the content of this case. In other words, as used herein, the phrase "based on" should be interpreted in the same way as the phrase "based at least in part."

In the drawings, similar components or features have the same reference symbols. In addition, each component of the same type can be distinguished by adding a dotted line after the component symbol and a second mark for distinguishing similar components. If only the first component symbol is used in the specification, the description can be applied to any similar component having the same first component symbol regardless of other subsequent component symbols.

The specific implementations set forth herein in conjunction with the drawings describe exemplary configurations, but they do not represent all examples that can be implemented, nor do they represent all examples that fall within the protection scope of the patent application. The word "exemplary" as used herein means "used as an example, instance, or illustration", but does not mean "better" or "advantageous" than other examples. The detailed description includes specific details for providing a thorough understanding of the described technology. However, these techniques can be implemented without using these specific details. In some examples, in order to avoid obscuring the concept of the described examples, well-known structures and devices are illustrated in block diagram form.

In order to enable any person skilled in the art to realize or use the content of this case, the content of this case is described above. For those skilled in the art, it is obvious to make various modifications to the content of this case, and the overall principle defined in this article can also be applied to other modifications without departing from the scope of protection of the content of this case. Therefore, the content of this case is not limited to the examples and design schemes described in this article, but is consistent with the broadest scope of principles and novel features disclosed in this article.

100‧‧‧Wireless communication system 105‧‧‧Base station 105-a‧‧‧Base station 110‧‧‧Geographical coverage area 110-a‧‧‧Geographic coverage area 115‧‧‧UE 115-a‧‧‧UE 125‧‧‧Communication link 130‧‧‧Core network 132‧‧‧backload link 134‧‧‧backload link 200‧‧‧Wireless communication system 205-a‧‧‧First component carrier 205-b‧‧‧Second component carrier 205-n‧‧‧nth component carrier 300‧‧‧Component Carrier 305‧‧‧First CC 310‧‧‧Second CC 315‧‧‧First transmission 320‧‧‧Second transmission 325‧‧‧Third transmission 330‧‧‧hour slot 400‧‧‧Component Carrier 405‧‧‧First CC 410‧‧‧Second CC 415‧‧‧First CC transmission 420‧‧‧Second CC transmission 425‧‧‧DMRS transmission 440‧‧‧hour slot 500‧‧‧Component Carrier 505‧‧‧First CC 510‧‧‧Second CC 515‧‧‧third CC 520‧‧‧PUSCH transmission 525‧‧‧PUCCH transmission 530‧‧‧First transmission 535‧‧‧Second transmission 540‧‧‧Third transmission 545‧‧‧Fourth transmission 550‧‧‧hour slot 600‧‧‧Timing advance group 605‧‧‧First CC 610‧‧‧Second CC 615‧‧‧First CC transmission 620‧‧‧First transmission 625‧‧‧Second transmission 630‧‧‧Overlapping period 700‧‧‧Component Carrier 705‧‧‧First CC 710‧‧‧Second CC 715‧‧‧PUCCH transmission 720‧‧‧PUSCH transmission 725‧‧‧SRS transmission 730‧‧‧hour slot 735‧‧‧hour slot 740‧‧‧hour slot 745‧‧‧hour slot 800‧‧‧Transmission 805‧‧‧First CC 810‧‧‧Second CC 815‧‧‧PUSCH transmission 820‧‧‧PUCCH transmission 825‧‧‧First transmission 830‧‧‧Second transmission 835‧‧‧Third transmission Part 840‧‧‧ 845‧‧‧hour slot 900‧‧‧Resource License 905‧‧‧First transmission 910‧‧‧Second transmission 915‧‧‧Third transmission 920‧‧‧hour slot 925‧‧‧Scheduled time period 930‧‧‧PUCCH transmission 935‧‧‧PUCCH transmission 1000‧‧‧Method 1005‧‧‧Step 1010‧‧‧Step 1015‧‧‧Step 1020‧‧‧Step 1025‧‧‧Step 1030‧‧‧Step 1035‧‧‧Step 1040‧‧‧Step 1045‧‧‧Step 1050‧‧‧Step 1055‧‧‧Step 1060‧‧‧step 1065‧‧‧Step 1070‧‧‧Step 1075‧‧‧Step 1080‧‧‧Step 1085‧‧‧Step 1090‧‧‧Step 1095‧‧‧Step 1100‧‧‧Method 1105‧‧‧Step 1110‧‧‧Step 1115‧‧‧Step 1120‧‧‧Step 1125‧‧‧Step 1130‧‧‧Step 1135‧‧‧Step 1140‧‧‧Step 1145‧‧‧Step 1150‧‧‧Step 1155‧‧‧Step 1160‧‧‧Step 1165‧‧‧Step 1170‧‧‧Step 1175‧‧‧Step 1180‧‧‧Step 1200‧‧‧Method 1205‧‧‧Step 1210‧‧‧Step 1215‧‧‧Step 1220‧‧‧Step 1225‧‧‧Step 1230‧‧‧Step 1235‧‧‧Step 1240‧‧‧Step 1245‧‧‧Step 1300‧‧‧Block Diagram 1305‧‧‧Wireless equipment 1310‧‧‧Receiver 1315‧‧‧UE Communication Manager 1320‧‧‧Transmitter 1400‧‧‧Block Diagram 1405‧‧‧Wireless equipment 1410‧‧‧Receiver 1415‧‧‧UE Communication Manager 1420‧‧‧Transmitter 1425‧‧‧Connection establishment part 1430‧‧‧CC Capability Parts 1435‧‧‧Timing Advance Manager 1440‧‧‧Uplink Transmission Manager 1445‧‧‧Transmit Power Control Manager 1500‧‧‧Block Diagram 1515‧‧‧UE Communication Manager 1520‧‧‧Connection establishment components 1525‧‧‧CC Capability Parts 1530‧‧‧Timing Advance Manager 1535‧‧‧Uplink Transmission Manager 1540‧‧‧Transmit Power Control Manager 1545‧‧‧Priority identification parts 1550‧‧‧Power scaling unit 1555‧‧‧Transmission accessory parts 1600‧‧‧System 1605‧‧‧Equipment 1610‧‧‧Bus 1615‧‧‧UE Communication Manager 1620‧‧‧Processor 1625‧‧‧Memory 1630‧‧‧Software 1635‧‧‧Transceiver 1640‧‧‧antenna 1645‧‧‧I/O Controller 1700‧‧‧Block Diagram 1705‧‧‧Wireless equipment 1710‧‧‧Receiver 1715‧‧‧Base Station Communication Manager 1720‧‧‧Transmitter 1800‧‧‧Block Diagram 1805‧‧‧Wireless equipment 1810‧‧‧Receiver 1815‧‧‧Base Station Communication Manager 1820‧‧‧Transmitter 1825‧‧‧Connection establishment components 1830‧‧‧Ability Recognition Parts 1835‧‧‧Scheduler 1840‧‧‧Downlink Control Information (DCI) component 1900‧‧‧Block Diagram 1915‧‧‧Base Station Communication Manager 1920‧‧‧Connection establishment components 1925‧‧‧Ability Identification Parts 1930‧‧‧Scheduler 1935‧‧‧DCI parts 1940‧‧‧Configuration Manager 2000‧‧‧System 2005‧‧‧Equipment 2010‧‧‧Bus 2015‧‧‧Base Station Communication Manager 2020‧‧‧Processor 2025‧‧‧Memory 2030‧‧‧Software 2035‧‧‧Transceiver 2040‧‧‧antenna 2045‧‧‧Network Communication Manager 2050‧‧‧Inter-Station Communication Manager 2100‧‧‧Method 2105‧‧‧Step 2110‧‧‧Step 2115‧‧‧Step 2200‧‧‧Method 2205‧‧‧Step 2210‧‧‧Step 2215‧‧‧Step 2220‧‧‧Step 2225‧‧‧Step 2230‧‧‧Step Step 2235‧‧‧ 2300‧‧‧Method 2305‧‧‧Step 2310‧‧‧Step 2315‧‧‧Step 2320‧‧‧Step 2325‧‧‧Step 2400‧‧‧Method 2405‧‧‧Step 2410‧‧‧Step 2415‧‧‧Step 2420‧‧‧Step 2500‧‧‧Method 2505‧‧‧Step 2510‧‧‧Step 2515‧‧‧Step 2520‧‧‧Step

Fig. 1 illustrates an example of a system for wireless communication according to the aspect of the content of the present case, wherein the system supports a technology for power control using carrier aggregation in wireless communication.

FIG. 2 illustrates an example of a part of a wireless communication system according to the aspect of the content of the present case, wherein the wireless communication system supports a power control technology using carrier aggregation in wireless communication.

FIG. 3 illustrates an example of wireless resources used for multiple component carriers according to the aspect of the content of this case, which supports the technology for power control using carrier aggregation in wireless communication.

FIG. 4 illustrates an example of frequency hopping in one or more component carriers according to the aspect of the content of this case, which supports the technology of power control using carrier aggregation in wireless communication.

FIG. 5 illustrates an example of overlapping wireless resources used for multiple component carriers according to the aspect of the content of this case, which supports the technology for power control using carrier aggregation in wireless communication.

FIG. 6 illustrates an example of overlapping thresholds for transmission of multiple timing advance groups according to the aspect of the content of this case, which supports the technology of power control using carrier aggregation in wireless communication.

FIG. 7 illustrates examples of different types of transmission on different component carriers according to the aspect of the content of this case, which supports the technology of power control using carrier aggregation in wireless communication.

FIG. 8 illustrates an example of performing power control by discarding the transmission using carrier aggregation in wireless communication according to the aspect of the content of this case.

FIG. 9 illustrates an example of the time axis of resource permission according to the aspect of the content of this case, which supports the technology of power control using carrier aggregation in wireless communication.

FIG. 10 illustrates an example of a method of supporting a technique for power control using carrier aggregation in wireless communication according to the aspect of the content of the present case.

FIG. 11 illustrates an example of another method that supports the technique of power control using carrier aggregation in wireless communication according to the aspect of the content of the present case.

FIG. 12 illustrates an example of another method that supports the technique of power control using carrier aggregation in wireless communication according to the aspect of the content of the present case.

FIGS. 13 to 15 illustrate block diagrams of devices that support power control technology using carrier aggregation in wireless communications according to aspects of the content of the present case.

FIG. 16 illustrates a block diagram of a system including a UE according to the aspect of the content of this case, where the UE supports a technology for power control using carrier aggregation in wireless communication.

Figures 17 to 19 illustrate block diagrams of devices that support power control technology using carrier aggregation in wireless communications according to aspects of the content of the present case.

FIG. 20 illustrates a block diagram of a system including a base station according to the aspect of the content of the present case, wherein the base station supports a technology for power control using carrier aggregation in wireless communication.

Figures 21 to 25 illustrate the method of power control technology using carrier aggregation in wireless communications according to the aspect of the content of the present case.

Domestic hosting information (please note in the order of hosting organization, date and number) without

Foreign hosting information (please note in the order of hosting country, institution, date, and number) without

500‧‧‧Component Carrier

505‧‧‧First CC

510‧‧‧Second CC

515‧‧‧third CC

520‧‧‧PUSCH transmission

525‧‧‧PUCCH transmission

530‧‧‧First transmission

535‧‧‧Second transmission

540‧‧‧Third transmission

545‧‧‧Fourth transmission

550‧‧‧hour slot

Claims (32)

A method for wireless communication includes the following steps: establishing a connection with a base station at a UE, the connection supporting two or more component carriers (CC); A plurality of uplink resource grants for a plurality of uplink transmissions on or more CCs, wherein the plurality of grants are received at least a predetermined time before the start of the time slot, and wherein the plurality of grants are used to transmit the plurality of uplink resource grants A transmit power of an uplink transmission exceeds a maximum power threshold for the UE during at least a portion of the time slot; the plurality of uplink transmissions are sorted based on a priority order associated with the subset of the plurality of uplink transmissions A transmit power of at least a subset of two uplink transmissions is scaled to provide that the transmit power is less than or equal to the maximum power threshold, and the priority order is relative to the plurality of uplink transmissions outside the subset Other transmissions in the plurality of uplink transmissions; after the predetermined time and before the start of the time slot, receive an additional grant for an additional uplink transmission; determine the additional uplink transmission Whether to increase a total transmit power of the UE above the maximum power threshold; and in response to determining that the additional uplink transmission increases a total transmit power of the UE above the maximum power threshold, discard the additional of Uplink transmission, and use one or more of the CCs to send the plurality of uplink transmissions during the time slot, or in response to determining that the additional uplink transmission will not transmit a total of the UE The power is increased above the maximum power threshold, and one or more of the CCs are used to send the additional uplink transmission and the plurality of uplink transmissions during the time slot. The method according to claim 1, wherein the predetermined time for receiving the plurality of licenses is pre-configured or signaled between the base station and the UE. The method of claim 1, wherein the predetermined time for receiving the plurality of licenses is based at least in part on a capability of the UE. The method according to claim 1, wherein a first CC of the two or more CCs belongs to a timing advance group (TAG) different from a second CC of the two or more CCs , And wherein a start time of the time slot of the first CC is before an end time of a previous time slot of the second CC. The method according to claim 4, wherein the method also includes the following steps: in response to an overlap period being less than or equal to an overlap threshold, performing the scaling of the transmit power regardless of the overlap period, wherein the overlap period corresponds to the first The start time of the time slot of a CC and the second A period between the end times of the previous time slot of the CC, and the overlap threshold corresponds to an amount of time for which the maximum power threshold for the UE is exempt. The method according to claim 4, wherein the method also includes the following steps: in response to an overlap period exceeding an overlap threshold, discarding an overlapped uplink transmission of the first CC or the second CC so as to be in the overlap period Provide a total transmit power less than or equal to the maximum power threshold during the period, wherein the overlap period is between the start time of the time slot of the first CC and the end time of the previous time slot of the second CC, and The overlap threshold corresponds to an amount of time that the maximum power threshold for the UE is exempted. The method according to claim 4, wherein the method also includes the following step: responding to the overlap between the start time of the time slot of the first CC and the end time of the previous time slot of the second CC When the time period exceeds an overlap threshold, the transmit power for uplink transmission of one or more of the first CC and the second CC is scaled to provide less than or equal to the maximum power threshold during the overlap period A total transmit power of, where the overlap threshold corresponds to an amount of time for which the maximum power threshold for the UE is exempted. The method according to claim 1, wherein the order of priority is The sequence is based at least in part on one or more of the following: a channel type associated with each of the plurality of uplink transmissions, the uplink transmitted via each of the plurality of uplink transmissions A type of link control information (UCI), or any combination thereof. A device for wireless communication includes: a member for establishing a connection with a base station at a user equipment (UE), the connection supporting two or more component carriers (CC); During a time slot, a means for receiving a plurality of uplink resource grants for a plurality of uplink transmissions on the two or more CCs, wherein the plurality of grants are at least one predetermined before the start of the time slot Time-received, where the transmit power used to send the plurality of uplink transmissions exceeds a maximum power threshold for the UE during at least a part of the time slot; A priority ranking associated with the subset scales a transmit power of at least a subset of the plurality of uplink transmissions to provide a component whose transmit power is less than or equal to the maximum power threshold. The priority ranking system With respect to the other transmissions in the plurality of uplink transmissions outside the subset of the plurality of uplink transmissions; used to receive data for an additional transmission after the predetermined time and before the start of the time slot An additional licensed configuration for uplink transmission Means for determining whether the additional uplink transmission will increase a total transmit power of the UE above the maximum power threshold; and for determining whether the additional uplink transmission will increase the UE’s A total transmit power is increased above the maximum power threshold, the other uplink transmission is discarded, and one or more of the CCs are used to send the plurality of uplink transmission components during the time slot, Or in response to determining that the additional uplink transmission will not increase a total transmit power of the UE above the maximum power threshold, using one or more of the CCs to transmit the additional The uplink transmission and the plurality of uplink transmission components. The apparatus of claim 9, wherein the priority ordering is based at least in part on one or more of the following: a channel type associated with each of the plurality of uplink transmissions, via the A type of uplink control information (UCI) sent by each of the plurality of uplink transmissions, or any combination thereof. The apparatus according to claim 9, wherein the predetermined time for receiving the plurality of licenses is pre-configured or signaled between the base station and the UE. The device according to claim 9, wherein the device is used to receive the The predetermined time for the plurality of licenses is based at least in part on a capability of the UE. The method according to claim 9, wherein a first CC of the two or more CCs belongs to a timing advance group (TAG) different from a second CC of the two or more CCs , And wherein a start time of the time slot of the first CC is before an end time of a previous time slot of the second CC. The device according to claim 13, wherein: the means for performing scaling responds that an overlap period is less than or equal to an overlap threshold, and performs the scaling of the transmission power regardless of the overlap period, wherein the overlap period corresponds to the first A period between the start time of the time slot of the CC and the end time of the previous time slot of the second CC, and the overlap threshold corresponds to an amount of time exempted from the maximum power threshold for the UE. The device according to claim 13, further comprising: in response to an overlap period exceeding an overlap threshold, the discarding means discards an overlapped uplink transmission of the first CC or the second CC to provide during the overlap period A total transmit power less than or equal to the maximum power threshold, wherein the overlap period is between the start time of the time slot of the first CC and the end time of the previous time slot of the second CC, and the overlap The threshold corresponds to an amount of time that is exempt from the maximum power threshold for the UE. The device of claim 13, wherein the discarding means discards an overlapped uplink transmission of the first CC or the second CC in response to an overlap period exceeding an overlap threshold, so as to provide less than or A total transmit power equal to the maximum power threshold, where the overlap period is between the start time of the time slot of the first CC and the end time of the previous time slot of the second CC, and the overlap threshold corresponds to An amount of time for exempting the maximum power threshold for the UE. A device for wireless communication includes: a processor; a memory for electronic communication with the processor; and instructions stored in the memory, which can be executed by the processor so that the device is used for: The UE establishes a connection with a base station, and the connection supports two or more component carriers (CCs); during a time slot, it receives multiple uplink transmissions on the two or more CCs. A plurality of uplink resource grants, wherein the plurality of grants are received at least a predetermined time before the start of the time slot, and wherein a transmit power used to send the plurality of uplink transmissions exceeds the time slot A maximum power threshold for the UE for at least a portion of the period; based on a subset associated with the plurality of uplink transmissions The priority ordering scales a transmission power of at least a subset of the plurality of uplink transmissions to provide that the transmission power is less than or equal to the maximum power threshold, and the priority ordering is relative to the plurality of uplink transmissions Other transmissions in the plurality of uplink transmissions outside of the subset; after the predetermined time and before the start of the time slot, receive an additional grant for an additional uplink transmission; determine the Whether the additional uplink transmission will increase a total transmit power of the UE above the maximum power threshold; and in response to determining that the additional uplink transmission increases a total transmit power of the UE above the maximum Power threshold, discard the additional uplink transmission, and use one or more of the CCs to send the plurality of uplink transmissions during the time slot, or in response to determining that the additional uplink transmission will not Increase a total transmit power of the UE above the maximum power threshold, and use one or more of the CCs to send the additional uplink transmission and the plurality of uplink transmissions during the time slot. The apparatus of claim 17, wherein the priority ordering is based at least in part on one or more of the following: a channel type associated with each of the plurality of uplink transmissions, via the A type of uplink control information (UCI) sent by each of a plurality of uplink transmissions, or any combination thereof combine. The apparatus of claim 17, wherein the predetermined time for receiving the plurality of licenses is pre-configured or signaled between the base station and the UE. The apparatus of claim 17, wherein the predetermined time for receiving the plurality of licenses is based at least in part on a capability of the UE. The device according to claim 17, wherein a first CC of the two or more CCs belongs to a timing advance group (TAG) different from a second CC of the two or more CCs , And wherein a start time of the time slot of the first CC is before an end time of a previous time slot of the second CC. The device of claim 21, wherein the instructions can be further executed by the processor to cause the device to: respond to an overlap period being less than or equal to an overlap threshold, and perform the scaling of the transmit power regardless of the overlap period, wherein The overlap period corresponds to a period between the start time of the time slot of the first CC and the end time of the previous time slot of the second CC, and the overlap threshold corresponds to the exemption for the UE An amount of time for the maximum power threshold. The device according to claim 21, wherein the instructions can be further executed by the processor to cause the device: In response to an overlap period exceeding an overlap threshold, an overlapped uplink transmission of the first CC or the second CC is discarded to provide a total transmit power less than or equal to the maximum power threshold during the overlap period, wherein the The overlap period is between the start time of the time slot of the first CC and the end time of the previous time slot of the second CC, and the overlap threshold corresponds to an exemption from the maximum power threshold for the UE. The amount of time. The device of claim 21, wherein the instructions can be further executed by the processor to make the device: respond to the start time of the time slot of the first CC and the previous time slot of the second CC The overlap period between the end times exceeds an overlap threshold, and the transmit power for uplink transmission of one or more of the first CC and the second CC is scaled to provide during the overlap period A total transmit power less than or equal to the maximum power threshold, where the overlap threshold corresponds to an amount of time for exempting the maximum power threshold for the UE. A non-transitory computer readable medium storing code for wireless communication, the code including instructions executable by a processor for the following operations: establishing a connection with a base station at a UE, the connection supporting Two or more component carriers (CCs); during a time slot, receiving data on the two or more CCs A plurality of uplink resource grants for a plurality of uplink transmissions, wherein the plurality of grants are received at least a predetermined time before the start of the time slot, and wherein the plurality of uplink resource grants are used to send a transmission of the plurality of uplink transmissions The power exceeds a maximum power threshold for the UE during at least a portion of the time slot; at least one of the plurality of uplink transmissions is ordered based on a priority order associated with the subset of the plurality of uplink transmissions A transmit power of a subset is scaled to provide that the transmit power is less than or equal to the maximum power threshold, and the priority ordering is relative to the plurality of uplinks outside the subset of the plurality of uplink transmissions Other transmissions in the transmission; after the predetermined time and before the start of the time slot, receive an additional grant for an additional uplink transmission; determine whether the additional uplink transmission will send a UE’s Increasing the total transmit power above the maximum power threshold; and in response to determining that the additional uplink transmission increases a total transmit power of the UE above the maximum power threshold, discarding the additional uplink transmission, and Use one or more of the CCs to send the plurality of uplink transmissions during the time slot, or in response to determining that the additional uplink transmission will not increase a total transmit power of the UE above the Maximum power threshold, using one or more of the CCs to send the other uplink during the time slot The uplink transmission and the plurality of uplink transmissions. The non-transitory computer-readable medium of claim 25, wherein the priority ordering is based at least in part on one or more of the following: related to each of the plurality of uplink transmissions A channel type of the connection, a type of uplink control information (UCI) sent via each of the plurality of uplink transmissions, or any combination thereof. The non-transitory computer-readable medium of claim 25, wherein the predetermined time for receiving the plurality of licenses is pre-configured or signaled between the base station and the UE. The non-transitory computer readable medium of claim 25, wherein the predetermined time for receiving the plurality of licenses is based at least in part on a capability of the UE. The non-transitory computer-readable medium according to claim 25, wherein a first CC of the two or more CCs is different from a second CC of the two or more CCs A timing advance group (TAG), and wherein a start time of the time slot of the first CC is before an end time of a previous time slot of the second CC. The non-transitory computer-readable medium according to claim 29, wherein the instructions can be further executed by the processor to: In response to an overlap period being less than or equal to an overlap threshold, the scaling of the transmit power is performed regardless of the overlap period, wherein the overlap period corresponds to the start time of the time slot of the first CC and the second CC A period between the end times of the previous time slot, and the overlap threshold corresponds to an amount of time exempted from the maximum power threshold for the UE. The non-transitory computer-readable medium of claim 29, wherein the instructions can be further executed by the processor to: the discarding component responds to an overlap period exceeding an overlap threshold, and discards the first CC or the first CC or the second An overlapped uplink transmission of two CCs to provide a total transmit power less than or equal to the maximum power threshold during the overlap period, wherein the overlap period is between the start time of the time slot of the first CC and the first CC Between the end times of the previous time slots of the two CCs, and the overlap threshold corresponds to an amount of time that is exempt from the maximum power threshold for the UE. The non-transitory computer-readable medium according to claim 29, wherein the instructions can be further executed by the processor to: in response to an overlap period exceeding an overlap threshold, discard the first CC or the second CC An overlapped uplink transmission to provide a total transmit power less than or equal to the maximum power threshold during the overlap period, wherein the overlap period is between the start time of the time slot of the first CC and the second CC Between the end time of the previous time slot, And the overlap threshold corresponds to an amount of time for exempting the maximum power threshold for the UE.

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